how long is a dissertation for phd

  • How Long Is a PhD Thesis?
  • Doing a PhD

It’s no secret that one of the most challenging aspects of a PhD degree is the volume of work that goes into writing your thesis . So this raises the question, exactly how long is a thesis?

Unfortunately, there’s no one size fits all answer to this question. However, from the analysis of over 100 PhD theses, the average thesis length is between 80,000 and 100,000 words. A further analysis of 1000 PhD thesis shows the average number of pages to be 204 . In reality, the actual word count for each PhD thesis will depend on the specific subject and the university it is being hosted by. This is because universities set their own word length requirements, with most found to be opting for around 100,000.

To find out more about how these word limits differ between universities, how the average word count from STEM thesis differ from non-STEM thesis and a more detailed breakdown from the analysis of over 1000 PhDs, carry on reading the below.

Word Count Differences Between Universities

For any PhD student writing a thesis, they will find that their document will be subject to a word limit set by their university. In nearly all cases, the limit only concerns the maximum number of words and doesn’t place any restrictions on the minimum word limit. The reason for this is that the student will be expected to write their thesis with the aim of clearly explaining their research, and so it is up to the student to determine what he deems appropriate.

Saying this, it is well accepted amongst PhD students and supervisors that the absence of a lower limit doesn’t suggest that a thesis can be ‘light’. Your thesis will focus on several years worth of original research and explore new ideas, theories or concepts. Besides this, your thesis will need to cover a wide range of topics such as your literature review, research methodology, results and conclusion. Therefore, your examiners will expect the length of your thesis to be proportional to convey all this information to a sufficient level.

Selecting a handful of universities at random, they state the following thesis word limits on their website:

  • University of Edinburgh: 100,000
  • University of Exeter: 100,000
  • University of Leister: 80,000
  • University of Bath: 80,000
  • University of Warwick: 70,000

The above universities set upper word limits that apply across the board, however, some universities, such as the University of Birmingham and the University of Sheffield, set different word limits for different departments. For example, the University of Sheffield adopts these limits:

  • Arts & Humanities: 75,000
  • Medicine, Dentistry & Health: 75,000
  • Science: 80,000
  • Social Sciences: 75,000-100,000

Although there’s a range of limit, it’s safe to say that the majority fall within the 80,000 to 100,000 bracket.

Word Count Based on Data from past Theses

A poll of 149 postdocs.

In mid-2019, Dr Eva Lantsoght, a published author, academic blogger and Structural Engineering Professor, conducted a poll which asked postgraduate doctoral students to share the length of their final thesis. 149 PostDoc students responded to the survey, with the majority reporting a length falling within the ‘80,000 – 120,000 words’ bracket as seen below.

DiscoverPhDs_How-long-is-a-PhD-Thesis_Poll

Analysis of 1000 PhD Theses

Over a three-year time period, Dr Ian Brailsford, a then Postgraduate Learning Adviser at the University of Auckland, analysed 1000 doctoral thesis submitted to his university’s library. The PhD theses which formed the basis of his analysis were produced between 2008 to 2017 and showed:

  • Average number of pages = 204
  • Median number of pages = 198
  • Average number of chapters = 7.6

We should note that the above metrics only cover the content falling within the main body of the thesis. This includes the introduction, literature review, methods section, results chapter, discussions and conclusions. All other sections, such as the title page, abstract, table of contents, acknowledgements, bibliography and appendices were omitted from the count.

Although it’s impossible to draw the exact word count from the number of pages alone, by using the universities recommended format of 12pt Times New Roman and 1.5 lines spacing, and assuming 10% of the main body are figures and footnotes, this equates to an average main body of 52,000 words.

STEM vs Non-STEM

As part of Dr Ian Brailsford’s analysis, he also compared the length of STEM doctorate theses to non-STEM theses. He found that STEM theses tended to be shorter. In fact, he found STEM theses to have a medium page length of 159 whilst non-STEM theses had a medium of around 223 pages. This is a 40% increase in average length!

Can You Exceed the Word Count?

Whilst most universities will allow you to go over the word count if you need to, it comes with the caveat that you must have a very strong reason for needing to do so. Besides this, your supervisor will also need to support your request. This is to acknowledge that they have reviewed your situation and agree that exceeding the word limit will be absolutely necessary to avoid detriment unnecessary detriment to your work.

This means that whilst it is possible to submit a thesis over 100,000 words or more, it’s unlikely that your research project will need to.

How Does This Compare to a Masters Dissertation?

The average Masters dissertation length is approximately 20,000 words whilst a thesis is 4 to 5 times this length at approximately 80,000 – 100,000.

The key reason for this difference is because of the level of knowledge they convey. A Master’s dissertation focuses on concluding from existing knowledge whilst a PhD thesis focuses on drawing a conclusion from new knowledge. As a result, the thesis is significantly longer as the new knowledge needs to be well documented so it can be verified, disseminated and used to shape future research.

Finding a PhD has never been this easy – search for a PhD by keyword, location or academic area of interest.

Related Reading

Unfortunately, the completion of your thesis doesn’t mark the end of your degree just yet. Once you submit your thesis, it’s time to start preparing for your viva – the all-to-fun thesis defence interview! To help you prepare for this, we’ve produced a helpful guide which you can read here: The Complete Guide to PhD Vivas.

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Tips for writing a PhD dissertation: FAQs answered

From how to choose a topic to writing the abstract and managing work-life balance through the years it takes to complete a doctorate, here we collect expert advice to get you through the PhD writing process

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Embarking on a PhD is “probably the most challenging task that a young scholar attempts to do”, write Mark Stephan Felix and Ian Smith in their practical guide to dissertation and thesis writing. After years of reading and research to answer a specific question or proposition, the candidate will submit about 80,000 words that explain their methods and results and demonstrate their unique contribution to knowledge. Here are the answers to frequently asked questions about writing a doctoral thesis or dissertation.

What’s the difference between a dissertation and a thesis?

Whatever the genre of the doctorate, a PhD must offer an original contribution to knowledge. The terms “dissertation” and “thesis” both refer to the long-form piece of work produced at the end of a research project and are often used interchangeably. Which one is used might depend on the country, discipline or university. In the UK, “thesis” is generally used for the work done for a PhD, while a “dissertation” is written for a master’s degree. The US did the same until the 1960s, says Oxbridge Essays, when the convention switched, and references appeared to a “master’s thesis” and “doctoral dissertation”. To complicate matters further, undergraduate long essays are also sometimes referred to as a thesis or dissertation.

The Oxford English Dictionary defines “thesis” as “a dissertation, especially by a candidate for a degree” and “dissertation” as “a detailed discourse on a subject, especially one submitted in partial fulfilment of the requirements of a degree or diploma”.

  • Ten platinum rules for PhD supervisors
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The title “doctor of philosophy”, incidentally, comes from the degree’s origins, write Dr Felix, an associate professor at Mahidol University in Thailand, and Dr Smith, retired associate professor of education at the University of Sydney , whose co-authored guide focuses on the social sciences. The PhD was first awarded in the 19th century by the philosophy departments of German universities, which at that time taught science, social science and liberal arts.

How long should a PhD thesis be?

A PhD thesis (or dissertation) is typically 60,000 to 120,000 words ( 100 to 300 pages in length ) organised into chapters, divisions and subdivisions (with roughly 10,000 words per chapter) – from introduction (with clear aims and objectives) to conclusion.

The structure of a dissertation will vary depending on discipline (humanities, social sciences and STEM all have their own conventions), location and institution. Examples and guides to structure proliferate online. The University of Salford , for example, lists: title page, declaration, acknowledgements, abstract, table of contents, lists of figures, tables and abbreviations (where needed), chapters, appendices and references.

A scientific-style thesis will likely need: introduction, literature review, materials and methods, results, discussion, bibliography and references.

As well as checking the overall criteria and expectations of your institution for your research, consult your school handbook for the required length and format (font, layout conventions and so on) for your dissertation.

A PhD takes three to four years to complete; this might extend to six to eight years for a part-time doctorate.

What are the steps for completing a PhD?

Before you get started in earnest , you’ll likely have found a potential supervisor, who will guide your PhD journey, and done a research proposal (which outlines what you plan to research and how) as part of your application, as well as a literature review of existing scholarship in the field, which may form part of your final submission.

In the UK, PhD candidates undertake original research and write the results in a thesis or dissertation, says author and vlogger Simon Clark , who posted videos to YouTube throughout his own PhD journey . Then they submit the thesis in hard copy and attend the viva voce (which is Latin for “living voice” and is also called an oral defence or doctoral defence) to convince the examiners that their work is original, understood and all their own. Afterwards, if necessary, they make changes and resubmit. If the changes are approved, the degree is awarded.

The steps are similar in Australia , although candidates are mostly assessed on their thesis only; some universities may include taught courses, and some use a viva voce. A PhD in Australia usually takes three years full time.

In the US, the PhD process begins with taught classes (similar to a taught master’s) and a comprehensive exam (called a “field exam” or “dissertation qualifying exam”) before the candidate embarks on their original research. The whole journey takes four to six years.

A PhD candidate will need three skills and attitudes to get through their doctoral studies, says Tara Brabazon , professor of cultural studies at Flinders University in Australia who has written extensively about the PhD journey :

  • master the academic foundational skills (research, writing, ability to navigate different modalities)
  • time-management skills and the ability to focus on reading and writing
  • determined motivation to do a PhD.

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How do I choose the topic for my PhD dissertation or thesis?

It’s important to find a topic that will sustain your interest for the years it will take to complete a PhD. “Finding a sustainable topic is the most important thing you [as a PhD student] would do,” says Dr Brabazon in a video for Times Higher Education . “Write down on a big piece of paper all the topics, all the ideas, all the questions that really interest you, and start to cross out all the ones that might just be a passing interest.” Also, she says, impose the “Who cares? Who gives a damn?” question to decide if the topic will be useful in a future academic career.

The availability of funding and scholarships is also often an important factor in this decision, says veteran PhD supervisor Richard Godwin, from Harper Adams University .

Define a gap in knowledge – and one that can be questioned, explored, researched and written about in the time available to you, says Gina Wisker, head of the Centre for Learning and Teaching at the University of Brighton. “Set some boundaries,” she advises. “Don’t try to ask everything related to your topic in every way.”

James Hartley, research professor in psychology at Keele University, says it can also be useful to think about topics that spark general interest. If you do pick something that taps into the zeitgeist, your findings are more likely to be noticed.

You also need to find someone else who is interested in it, too. For STEM candidates , this will probably be a case of joining a team of people working in a similar area where, ideally, scholarship funding is available. A centre for doctoral training (CDT) or doctoral training partnership (DTP) will advertise research projects. For those in the liberal arts and social sciences, it will be a matter of identifying a suitable supervisor .

Avoid topics that are too broad (hunger across a whole country, for example) or too narrow (hunger in a single street) to yield useful solutions of academic significance, write Mark Stephan Felix and Ian Smith. And ensure that you’re not repeating previous research or trying to solve a problem that has already been answered. A PhD thesis must be original.

What is a thesis proposal?

After you have read widely to refine your topic and ensure that it and your research methods are original, and discussed your project with a (potential) supervisor, you’re ready to write a thesis proposal , a document of 1,500 to 3,000 words that sets out the proposed direction of your research. In the UK, a research proposal is usually part of the application process for admission to a research degree. As with the final dissertation itself, format varies among disciplines, institutions and countries but will usually contain title page, aims, literature review, methodology, timetable and bibliography. Examples of research proposals are available online.

How to write an abstract for a dissertation or thesis

The abstract presents your thesis to the wider world – and as such may be its most important element , says the NUI Galway writing guide. It outlines the why, how, what and so what of the thesis . Unlike the introduction, which provides background but not research findings, the abstract summarises all sections of the dissertation in a concise, thorough, focused way and demonstrates how well the writer understands their material. Check word-length limits with your university – and stick to them. About 300 to 500 words is a rough guide ­– but it can be up to 1,000 words.

The abstract is also important for selection and indexing of your thesis, according to the University of Melbourne guide , so be sure to include searchable keywords.

It is the first thing to be read but the last element you should write. However, Pat Thomson , professor of education at the University of Nottingham , advises that it is not something to be tackled at the last minute.

How to write a stellar conclusion

As well as chapter conclusions, a thesis often has an overall conclusion to draw together the key points covered and to reflect on the unique contribution to knowledge. It can comment on future implications of the research and open up new ideas emanating from the work. It is shorter and more general than the discussion chapter , says online editing site Scribbr, and reiterates how the work answers the main question posed at the beginning of the thesis. The conclusion chapter also often discusses the limitations of the research (time, scope, word limit, access) in a constructive manner.

It can be useful to keep a collection of ideas as you go – in the online forum DoctoralWriting SIG , academic developer Claire Aitchison, of the University of South Australia , suggests using a “conclusions bank” for themes and inspirations, and using free-writing to keep this final section fresh. (Just when you feel you’ve run out of steam.) Avoid aggrandising or exaggerating the impact of your work. It should remind the reader what has been done, and why it matters.

How to format a bibliography (or where to find a reliable model)

Most universities use a preferred style of references , writes THE associate editor Ingrid Curl. Make sure you know what this is and follow it. “One of the most common errors in academic writing is to cite papers in the text that do not then appear in the bibliography. All references in your thesis need to be cross-checked with the bibliography before submission. Using a database during your research can save a great deal of time in the writing-up process.”

A bibliography contains not only works cited explicitly but also those that have informed or contributed to the research – and as such illustrates its scope; works are not limited to written publications but include sources such as film or visual art.

Examiners can start marking from the back of the script, writes Dr Brabazon. “Just as cooks are judged by their ingredients and implements, we judge doctoral students by the calibre of their sources,” she advises. She also says that candidates should be prepared to speak in an oral examination of the PhD about any texts included in their bibliography, especially if there is a disconnect between the thesis and the texts listed.

Can I use informal language in my PhD?

Don’t write like a stereotypical academic , say Kevin Haggerty, professor of sociology at the University of Alberta , and Aaron Doyle, associate professor in sociology at Carleton University , in their tongue-in-cheek guide to the PhD journey. “If you cannot write clearly and persuasively, everything about PhD study becomes harder.” Avoid jargon, exotic words, passive voice and long, convoluted sentences – and work on it consistently. “Writing is like playing guitar; it can improve only through consistent, concerted effort.”

Be deliberate and take care with your writing . “Write your first draft, leave it and then come back to it with a critical eye. Look objectively at the writing and read it closely for style and sense,” advises THE ’s Ms Curl. “Look out for common errors such as dangling modifiers, subject-verb disagreement and inconsistency. If you are too involved with the text to be able to take a step back and do this, then ask a friend or colleague to read it with a critical eye. Remember Hemingway’s advice: ‘Prose is architecture, not interior decoration.’ Clarity is key.”

How often should a PhD candidate meet with their supervisor?

Since the PhD supervisor provides a range of support and advice – including on research techniques, planning and submission – regular formal supervisions are essential, as is establishing a line of contact such as email if the candidate needs help or advice outside arranged times. The frequency varies according to university, discipline and individual scholars.

Once a week is ideal, says Dr Brabazon. She also advocates a two-hour initial meeting to establish the foundations of the candidate-supervisor relationship .

The University of Edinburgh guide to writing a thesis suggests that creating a timetable of supervisor meetings right at the beginning of the research process will allow candidates to ensure that their work stays on track throughout. The meetings are also the place to get regular feedback on draft chapters.

“A clear structure and a solid framework are vital for research,” writes Dr Godwin on THE Campus . Use your supervisor to establish this and provide a realistic view of what can be achieved. “It is vital to help students identify the true scientific merit, the practical significance of their work and its value to society.”

How to proofread your dissertation (what to look for)

Proofreading is the final step before printing and submission. Give yourself time to ensure that your work is the best it can be . Don’t leave proofreading to the last minute; ideally, break it up into a few close-reading sessions. Find a quiet place without distractions. A checklist can help ensure that all aspects are covered.

Proofing is often helped by a change of format – so it can be easier to read a printout rather than working off the screen – or by reading sections out of order. Fresh eyes are better at spotting typographical errors and inconsistencies, so leave time between writing and proofreading. Check with your university’s policies before asking another person to proofread your thesis for you.

As well as close details such as spelling and grammar, check that all sections are complete, all required elements are included , and nothing is repeated or redundant. Don’t forget to check headings and subheadings. Does the text flow from one section to another? Is the structure clear? Is the work a coherent whole with a clear line throughout?

Ensure consistency in, for example, UK v US spellings, capitalisation, format, numbers (digits or words, commas, units of measurement), contractions, italics and hyphenation. Spellchecks and online plagiarism checkers are also your friend.

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How do you manage your time to complete a PhD dissertation?

Treat your PhD like a full-time job, that is, with an eight-hour working day. Within that, you’ll need to plan your time in a way that gives a sense of progress . Setbacks and periods where it feels as if you are treading water are all but inevitable, so keeping track of small wins is important, writes A Happy PhD blogger Luis P. Prieto.

Be specific with your goals – use the SMART acronym (specific, measurable, attainable, relevant and timely).

And it’s never too soon to start writing – even if early drafts are overwritten and discarded.

“ Write little and write often . Many of us make the mistake of taking to writing as one would take to a sprint, in other words, with relatively short bursts of intense activity. Whilst this can prove productive, generally speaking it is not sustainable…In addition to sustaining your activity, writing little bits on a frequent basis ensures that you progress with your thinking. The comfort of remaining in abstract thought is common; writing forces us to concretise our thinking,” says Christian Gilliam, AHSS researcher developer at the University of Cambridge ’s Centre for Teaching and Learning.

Make time to write. “If you are more alert early in the day, find times that suit you in the morning; if you are a ‘night person’, block out some writing sessions in the evenings,” advises NUI Galway’s Dermot Burns, a lecturer in English and creative arts. Set targets, keep daily notes of experiment details that you will need in your thesis, don’t confuse writing with editing or revising – and always back up your work.

What work-life balance tips should I follow to complete my dissertation?

During your PhD programme, you may have opportunities to take part in professional development activities, such as teaching, attending academic conferences and publishing your work. Your research may include residencies, field trips or archive visits. This will require time-management skills as well as prioritising where you devote your energy and factoring in rest and relaxation. Organise your routine to suit your needs , and plan for steady and regular progress.

How to deal with setbacks while writing a thesis or dissertation

Have a contingency plan for delays or roadblocks such as unexpected results.

Accept that writing is messy, first drafts are imperfect, and writer’s block is inevitable, says Dr Burns. His tips for breaking it include relaxation to free your mind from clutter, writing a plan and drawing a mind map of key points for clarity. He also advises feedback, reflection and revision: “Progressing from a rough version of your thoughts to a superior and workable text takes time, effort, different perspectives and some expertise.”

“Academia can be a relentlessly brutal merry-go-round of rejection, rebuttal and failure,” writes Lorraine Hope , professor of applied cognitive psychology at the University of Portsmouth, on THE Campus. Resilience is important. Ensure that you and your supervisor have a relationship that supports open, frank, judgement-free communication.

If you would like advice and insight from academics and university staff delivered direct to your inbox each week, sign up for the Campus newsletter .

Authoring a PhD Thesis: How to Plan, Draft, Write and Finish a Doctoral Dissertation (2003), by Patrick Dunleavy

Writing Your Dissertation in Fifteen Minutes a Day: A Guide to Starting, Revising, and Finishing Your Doctoral Thesis (1998), by Joan Balker

Challenges in Writing Your Dissertation: Coping with the Emotional, Interpersonal, and Spiritual Struggles (2015), by Noelle Sterne

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How long is a Thesis or Dissertation? [the data] PhD, Masters +

Writing a thesis for your undergraduate, master’s, or PhD can be a very daunting task. Especially when you consider how long a thesis can get. However, not all theses are the same length and the expected submission length is dependent on the level of study that you are currently enrolled in and the field in which you are studying.

An undergraduate thesis is likely to be about 20 to 50 pages long. A Master’s thesis is likely to be between 30 and 100 pages in length and a PhD dissertation is likely to be between 50 and 450 pages long.

In the table below I highlight the typical length of an undergraduate, master’s, and PhD.

Level of studyPagesWords
20 – 5010,000 – 30,000
30 – 10025,000 – 50,000
50 – 45060,000 – 80,000

It is important to note that this is highly dependent on the field of study and the expectations of your university, field, and research group.

If you want to know more about how long a Masters thesis and PhD dissertation is you can check out my other articles:

  • How Long is a Masters Thesis? [Your writing guide]
  • How long is a PhD dissertation? [Data by field]
  • How to write a masters thesis in 2 months [Easy steps to start writing]

These articles go into a lot more detail and specifics of each level of study, including master’s and doctoral degrees.

Let’s take a more detailed look at the length of a thesis or dissertation. We’ll start from the very basics including what a dissertation or thesis really is.

What exactly is a thesis or a dissertation?

A thesis or a dissertation is a research project that is typically required of students in order to gain an advanced degree.

A dissertation is usually much longer and more detailed than a thesis, but they both involve extensive research and provide an in-depth analysis of their given subject.

Many people use the term interchangeably but quite often a Masters level research project results in a thesis. While a PhD research project results in a much longer dissertation.

Thesis work is usually completed over the course of several months and can require multiple drafts and revisions before being accepted. These will be looked over by your supervisor to ensure that you are meeting the expectations and standards of your research field.

PhD Dissertations are typically even more involved, taking years to complete. My PhD took me three years to complete but it is usual for them to take more than five years.

Both a thesis and a dissertation involve researching a particular topic, formulating an argument based on evidence gathered from the research, and presenting the findings in written form for review by peers or faculty members.

My Master’s thesis was reviewed by the chemistry Department whilst my PhD thesis was sent to experts in the field around the world.

Ultimately, these experts provide a commentary on whether or not you have reached the standards required of the University for admittance into the degree and the final decision will be made upon reviewing these comments by your universities graduation committee.

There are several outcomes including:

  • accepted without changes – this is where you must make no changes to your thesis and is accepted as is.
  • accepted with minor changes this is where your thesis will require some minor changes before being admitted to the degree. Usually, it is not sent back to the reviewers after the thesis defence.
  • Major changes – this is where the committee has decided that you need to rework a number of major themes in your thesis and will likely want to see it at a later stage.
  • Rejected – this is where the dissertation or thesis is rejected and the recommendation to downgrade your degree program is made.

What is the typical length of a thesis or dissertation?

The length of a thesis or dissertation varies significantly according to the field of study and institution, especially in social sciences.

Generally, an undergraduate thesis is between 20-50 pages long while a PhD dissertation can range from 90-500 pages in length.

However, longer is not necessarily better as a highly mathematical PhD thesis with proofs may only be 50 pages long.

It also depends on the complexity of the topic being studied and the amount of research required to complete it.

A PhD dissertation should contain as many pages and words as it takes to outline the current state of your field and provide adequate background information, present your results, and provide confidence in your conclusions. A PhD dissertation will also contain figures, graphs, schematics, and other large pictorial items that can easily inflate the page count.

Here is a boxplot summary of many different fields of study and the number of pages of a typical PhD dissertation in the field, including social sciences.  It has been created by Marcus Beck  from all of the dissertations at the University of Minnesota.

how long is a thesis

Typically, the mathematical sciences, economics, and biostatistics theses and dissertations tend to be shorter because they rely on mathematical formulas to provide proof of their results rather than diagrams and long explanations.

On the other end of the scale, English, communication studies, political science, history and anthropology are often the largest theses in terms of pages and word count because of the number of words it takes to provide proof and depth of their results.

At the end of the day, it is important that your thesis gets signed off by your review committee and other experts in the field. Your supervisor will be the main judge of whether or not your dissertation is capable of satisfying the requirements of a master’s or doctoral degree in your field. 

How Many Pages Should a Master or PhD Thesis Have? Length of a thesis?

The length of a master’s thesis can vary greatly depending on the subject and format.

Generally, a masters thesis is expected to be around 100 pages long and should include:

  • a title page,
  • table of contents,
  • introduction,
  • literature review, 
  • main test and body of work, 
  • discussions and citations,
  • conclusion,
  • bibliography
  • and (sometimes) appendix.

Your supervisor should provide you with a specific format for your dissertation or thesis that you are expected to follow.

Depending on your field of study and the word count specified by your supervisor, these guidelines may change. The student must ask their advisor for examples of past student thesis and doctoral dissertations. 

For example, if there is a limited number of words allowed in the thesis then it may not be possible to have 100 pages or more for the thesis.

Additionally, if you are including a lot of technical information such as diagrams or tables in the appendix of your dissertation or thesis, then this could increase the page count as well. For example, my PhD thesis contained a page like the one below.

This page only contains images from atomic force microscopy. Because my PhD was very visual, many pages like this exist.

how long is a thesis - it can be really long if there are loads of pages like this!

Ultimately it is important to consult with your supervisor and determine how many pages your master’s thesis or PhD dissertation will be expected to have.

How long does it take to write a graduate thesis? Write your thesis quickly

Writing a graduate thesis can be a daunting task.

It is typically expected to take anywhere from one to three years, depending on the subject and scope of the project.

However, this is not just writing. A typical thesis or dissertation will require you to:

  • formulate a research question
  • do a literature review
  • create research methodology
  • perform original research
  • collect and analyse results
  • write peer-reviewed research papers
  • write a PhD/masters thesis
  • submit thesis and respond to examiners comments.

The actual writing component of a thesis or dissertation can take anywhere from one month to 6 months depending on how focused the PhD student is.

The amount of time it takes to write a thesis or dissertation can vary based on many factors, such as the type of research required, the length of the project, and other commitments that may interfere with progress.

Some students may have difficulty focusing or understanding their topic which can also add to the amount of time it takes to complete the project.

Regardless, writing a thesis is an important part of obtaining a graduate degree and should not be taken lightly.

It requires dedication and determination in order for one to successfully complete a thesis or dissertation within an appropriate timeframe.

In my YouTube video, below, I talk about how to finish your thesis or dissertation quickly:

It is full of a load of secrets including owning your day, managing your supervisor relationship, setting many goals, progress over perfection, and working with your own body clock to maximise productivity.

Wrapping up

This article has been through everything you need to know about the typical length of a dissertation or thesis.

The answer to this question is highly dependent on your field of study and the expectations of your supervisor and university.

Frequently Asked Questions: How Long is a Thesis

How long is a thesis.

A thesis is typically a document submitted in support of an academic degree, presenting the author’s research and findings. The length of a thesis can vary depending on the level of study and specific requirements of the institution. It can range from 60 – 100 pages for a master’s thesis to several hundred pages for a doctoral dissertation.

What is the difference between a thesis and a dissertation?

While the terms thesis and dissertation are often used interchangeably, they can have different meanings depending on the region or academic context. In some countries, a thesis is associated with a bachelor’s or master’s degree, while a dissertation is typically required for a doctoral degree.

Is there a specific word count for a thesis?

While there is no universal word count for a thesis , institutions may provide guidelines on the expected length based on the type of degree and academic discipline. It’s essential to adhere to the specified word count to meet academic standards.

How does the length of a thesis vary across different fields of study?

The length of a thesis can differ based on the field of study and the nature of the research being conducted. For example, a thesis in the social sciences may be shorter compared to one in a scientific or technical field that requires extensive data analysis and documentation.

how long is a dissertation for phd

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how long is a dissertation for phd

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how long is a dissertation for phd

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How Long Should Be PhD Dissertation? Unlocking The Mystery of PhD Thesis Length

PhD Dissertation length

Embarking on the journey of a PhD is a scholarly endeavour that demands not only intellectual prowess but also a deep commitment to contributing valuable insights to the academic world. At the heart of this rigorous pursuit lies the dissertation, a magnum opus that serves as the pinnacle of one’s academic achievement. Yet, as aspiring scholars delve into the realms of research and knowledge creation, a pivotal question looms large: How long should a Ph.D. dissertation be?

The optimal length of a Ph.D. dissertation is a strategic equilibrium, determined by the intricate interplay of research complexity, disciplinary norms, and institutional guidelines, emphasizing quality over mere quantity.

In the intricate tapestry of academia, the length of a dissertation is a nuanced consideration, influenced by a myriad of factors ranging from disciplinary norms to the intricacies of research design. In this exploration, we embark on a journey to unravel the complexities surrounding dissertation length, understanding the guiding principles, and offering insights into how aspiring doctoral candidates can strike the delicate balance between depth and brevity.

Join us as we navigate the academic landscape, demystifying the expectations, uncovering the variances across disciplines, and providing practical tips for crafting a dissertation that stands as a testament to scholarly excellence. Whether you’re at the threshold of your doctoral journey or guiding others through its twists and turns, this discourse aims to shed light on the intricacies of dissertation length, empowering you to embark on this intellectual odyssey with confidence and purpose.

Introduction

A. defining the purpose.

  • B. The Dissertation's Role in Academic Knowledge

C. Emphasizing Thorough Research and Original Contributions

A. exploring institutional guidelines, b. specific requirements and length expectations, c. the importance of adherence, a. acknowledging disciplinary differences, b. examples of varied expectations, c. emphasizing disciplinary norms, a. research complexity, b. data collection and analysis, c. literature review, d. methodology, a. emphasizing the importance of balance, b. strategies for maintaining focus and relevance, c. encouraging quality over quantity, a. effective time management, b. techniques for concise writing, c. value of feedback from advisors and peers.

Embarking on a PhD journey is akin to setting sail into uncharted waters of knowledge, with the dissertation standing tall as the crowning achievement. It’s not just a document; it’s a testament to years of intellectual toil, research finesse, and a contribution to the vast expanse of human understanding. But as scholars immerse themselves in the sea of research, a question inevitably surfaces: How long should a Ph.D. dissertation be?

Significance Unveiled

A Ph.D. dissertation is more than a lengthy document; it’s a scholarly masterpiece that not only encapsulates an individual’s intellectual prowess but adds a unique brushstroke to the grand canvas of academia. It’s a beacon of knowledge, guiding future researchers and shaping the trajectory of scholarly discourse. Understanding its significance is the first step toward unlocking the secrets of its length.

Navigating Length: A Delicate Balancing Act

Determining the appropriate length for a Ph.D. dissertation is no mere formality. It’s a delicate dance between providing comprehensive insights and maintaining reader engagement. Striking this balance is crucial, as the length not only influences how the research is perceived but also reflects the researcher’s ability to weave a compelling narrative without unnecessary verbosity.

Factors in the Equation

The length of a dissertation is a dynamic variable influenced by a multitude of factors. From the complexity of the research question to the intricacies of data collection, each element plays a role. It’s a symphony where the depth of the literature review, the intricacy of the methodology, and the nature of the chosen discipline all contribute to the final crescendo of the dissertation length.

Purpose of a PhD Dissertation

At the heart of the Ph.D. journey lies the dissertation, a formidable endeavour that goes beyond being a mere academic requirement. It serves as the cornerstone of a scholar’s intellectual legacy, encapsulating years of research, critical thinking, and a commitment to advancing knowledge in a specific field. The purpose of a Ph.D. dissertation extends far beyond a graduation requirement; it is a scholarly rite of passage that marks one’s entry into the ranks of contributing intellectuals.

B. The Dissertation’s Role in Academic Knowledge

The dissertation, in essence, is a torchbearer of academic knowledge. It doesn’t merely regurgitate existing information but actively contributes to the ongoing conversation within a field. Picture it as a puzzle piece that, when seamlessly integrated, enriches the larger mosaic of human understanding. Its role is not just to summarize what is known but to illuminate uncharted territories, challenging established paradigms and paving the way for new insights.

Example: In the field of environmental science, a Ph.D. dissertation might delve into the impact of climate change on a specific ecosystem, offering novel findings that reshape our understanding of ecological resilience. It becomes a pivotal contribution that informs future research and policy decisions.

Thorough research is the bedrock upon which a meaningful dissertation stands. It involves meticulously exploring existing literature, methodologies, and gaps in knowledge. This isn’t a cursory glance but a deep dive into the scholarly ocean, where each wave of information contributes to the construction of a comprehensive understanding.

Original contributions are the soul of a Ph.D. dissertation. It’s not just about rehashing what’s already known but about introducing something new and transformative. This could be a novel research methodology, a groundbreaking theory, or empirical findings that challenge existing theories.

Example: In the realm of psychology, a Ph.D. dissertation might involve the development of a new therapeutic approach for a specific mental health condition, backed by both a comprehensive review of existing literature and empirical evidence from original studies. This not only adds to the academic discourse but also has tangible implications for clinical practice.

University Guidelines PhD Dissertation Length: Navigating the Academic Framework

In academia, each university sets the stage with its own set of guidelines governing the composition and expectations of a Ph.D. dissertation. These guidelines serve as the rulebook, providing a roadmap for aspiring scholars to traverse the challenging terrain of research and writing. Understanding these guidelines is akin to deciphering the code that unlocks the door to doctoral success.

Dive into the particulars, and you’ll find that universities often outline specific requirements and expectations regarding the length of a dissertation. These may range from prescribed word counts for each section to broader expectations for the overall document. Some institutions might emphasize brevity, while others encourage a more expansive exploration. Unravelling these expectations is not just a bureaucratic formality; it’s a strategic move that ensures your work aligns with the academic standards set by your institution.

Example: Imagine a university that places a strong emphasis on concise and focused dissertations. Here, the guidelines may state a maximum word count for each chapter, encouraging a streamlined and impactful presentation of research findings. Adhering to these specifics ensures that your dissertation not only meets the academic standards but also resonates with the evaluators who appreciate clarity and precision.

While the allure of academic freedom may tempt scholars to chart their own course, adherence to institutional guidelines is paramount. It’s not just a matter of compliance; it’s a strategic decision that aligns your work with the expectations of the academic community. Universities set guidelines with a purpose – to maintain standards, ensure consistency, and facilitate fair evaluation. Ignoring these guidelines can inadvertently hinder the reception of your dissertation, potentially overshadowing the brilliance of your research with concerns about adherence to academic norms.

Disciplinary Variances: Navigating the Length Spectrum

In the vast landscape of academia, one size certainly does not fit all, especially when it comes to the length of Ph.D. dissertations. It’s crucial to acknowledge and appreciate the dynamic nature of disciplinary differences, where each field has its own set of expectations, traditions, and scholarly norms. Understanding this diversity is the key to crafting a dissertation that resonates within the specific academic community to which it belongs.

Let’s take a stroll through different academic landscapes to grasp the breadth of expectations. In the sciences, precision and brevity often reign supreme. A molecular biology dissertation, for instance, may prioritize concise methodology and results chapters, with an emphasis on data interpretation. Contrast this with a dissertation in the humanities, where the richness of language and the depth of literary analysis might lead to a more extensive exploration of concepts.

Example: In engineering, a Ph.D. dissertation might lean towards a succinct presentation of methodologies, experimental results, and their implications for the field. Meanwhile, in the realm of philosophy, a dissertation could be characterized by a more expansive engagement with existing literature and a thorough philosophical exploration of the research question.

The beauty of academia lies in its diversity, but this very diversity requires scholars to be attuned to the norms of their specific discipline. What might be considered a concise and impactful dissertation in one field could be seen as lacking depth in another. Recognizing these norms is not just a matter of fitting in; it’s a strategic decision that ensures your work aligns with the expectations of your academic peers.

Understanding disciplinary norms is like speaking the language of your scholarly community. It’s about knowing when to be succinct and when to elaborate, when to prioritize methodology and when to delve deep into theoretical frameworks.

Factors Influencing PhD Dissertation Length

1. Impact of Research Question Complexity

The complexity of your research question is like the compass guiding the depth and breadth of your dissertation. Intricate inquiries often demand more comprehensive exploration, delving into multiple facets and dimensions. For instance, a research question investigating the genetic determinants of a rare disease may necessitate an extensive review of existing literature, detailed methodologies, and intricate analyses to uncover meaningful insights.

2. Examples of Research Topics

Consider the following examples to illustrate the point:

  • Less Complex: An analysis of consumer behavior in response to a specific marketing strategy might require a detailed but more straightforward exploration.
  • More Complex: On the other hand, a study examining the intersection of artificial intelligence and ethical considerations in healthcare may demand a multifaceted investigation into both technological and ethical dimensions, significantly impacting the length of the dissertation.

1. Influence of Data Nature and Quantity

The nature and amount of data collected cast a profound shadow on dissertation length. A project relying on extensive datasets, intricate statistical analyses, or comprehensive case studies inherently demands a more extended exploration. In contrast, qualitative research might be more concise but equally impactful in unraveling complex phenomena.

2. Role of Statistical Analysis, Case Studies, or Qualitative Research

Consider the following scenarios:

  • Statistical Analysis: A dissertation delving into the economic impact of climate change policies might involve sophisticated statistical models and require an in-depth presentation of results and their implications.
  • Qualitative Research: Conversely, a dissertation employing qualitative interviews to explore the lived experiences of individuals facing a specific social challenge may present findings in a more narrative form.

1. Significance of a Comprehensive Literature Review

A robust literature review acts as the scaffolding for your dissertation, providing the theoretical foundation and context for your research. The broader and more complex the field, the more extensive the literature review. For instance, exploring a niche area within a rapidly evolving field, like emerging technologies, may demand a more thorough literature review to capture the latest developments and debates.

2. Contribution to Overall Length

Consider this:

  • A dissertation in environmental science, investigating the impact of urbanization on biodiversity, might necessitate a detailed exploration of existing literature on ecology, urban planning, and biodiversity conservation.

1. Impact of Detailed Research Methodology

The methodology section is the blueprint of your research, and its level of detail significantly influences the length of your dissertation. A dissertation with a meticulous methodology section is like a well-constructed building, providing a clear roadmap for readers to understand the research process.

2. Need for Clarity and Precision in Research Design

For example:

  • A dissertation in public health aiming to assess the effectiveness of a health intervention might require a detailed explanation of the study design, participant recruitment strategies, and data collection methods to ensure the study’s validity and reliability.

Balancing Depth and Brevity: Crafting a Dissertation Masterpiece

In the symphony of scholarly writing, achieving harmony between depth and brevity is a skill that distinguishes a stellar dissertation. While delving deep into the nuances of your research is essential, presenting it with conciseness ensures that your audience remains engaged. The challenge lies in striking the right balance, where the richness of content is not sacrificed on the altar of brevity.

  • Clear Research Objectives: Begin with well-defined research objectives that serve as the North Star for your dissertation. This clarity guides your writing, preventing unnecessary tangents and ensuring each section contributes directly to your overarching goals. Example: In a dissertation exploring the impact of mindfulness-based interventions on stress reduction, clear objectives would center around understanding the effectiveness of specific mindfulness techniques and their implications for stress management.
  • Thematic Structure: Organize your dissertation thematically, ensuring each chapter has a clear purpose and contributes to building a cohesive narrative. This not only aids readability but also enhances the overall impact of your research. Example: In a literature review, grouping studies thematically—such as by intervention type or outcome measures—provides a structured and focused presentation of existing research, avoiding a scattered and disjointed narrative.
  • Rigorous Editing: Approach your writing with a discerning eye during the editing process. Trim unnecessary words, sentences, or sections that do not directly contribute to the core message of your dissertation. Be ruthless in maintaining relevance. Example: In the methodology section, focus on explaining key decisions and processes, omitting redundant details that do not influence the study’s validity or replicability.
  • Depth of Analysis: Instead of inundating your dissertation with an abundance of superficial analyses, delve deep into a few key points. Thoroughly explore the significance and implications of your findings, providing a nuanced understanding of your research. Example: In a discussion section, rather than covering multiple tangential points, focus on the most critical aspects of your results, analyzing their theoretical and practical implications in detail.
  • Precision in Language: Choose words judiciously to convey your ideas with precision. Aim for clarity without unnecessary embellishments, ensuring that each sentence adds value to your argument. Example: In the introduction, use concise language to clearly articulate the research gap, the significance of the study, and the specific research questions without unnecessary elaboration.
  • Selectivity in Citations: While a comprehensive literature review is vital, selectively cite studies that directly contribute to your research context. Avoid an exhaustive list that overwhelms readers with unnecessary details. Example: In a literature review on educational interventions for students with learning disabilities, selectively cite studies that showcase diverse approaches and methodologies, providing a nuanced understanding of the existing landscape.

As we navigate the delicate equilibrium between depth and brevity, remember that a well-crafted dissertation is not measured by its length but by the impact of its scholarly contributions. Join us as we explore the art of balancing substance with succinctness, ensuring your dissertation stands as a masterpiece in the annals of academic inquiry.

Tips for Managing PhD Dissertation Length: Navigating the Dissertation Writing Process

  • Setting Realistic Milestones: Break down the dissertation-writing process into manageable milestones. Establish realistic timelines for each section, considering the complexity and time required for research, writing, and revisions. Example: Allocate a specific time frame for conducting literature reviews, data analysis, and drafting each chapter. This ensures steady progress and prevents last-minute rushes.
  • Regular Progress Checks: Monitor your progress regularly and adjust your schedule as needed. If a particular section is taking longer than anticipated, evaluate the reasons and recalibrate your timeline accordingly. Example: If data analysis is proving more time-consuming than expected, revisit your research plan and, if necessary, adjust your writing schedule for subsequent chapters.
  • Balancing Research and Writing: Strive for a balance between conducting research and writing. While research is crucial, allocate dedicated time for translating findings into written content to avoid a backlog of information. Example: If you’re conducting experiments, allocate specific writing sessions to summarize and interpret the results, ensuring a continuous flow of progress.

Visit my article on ” How to Manage Research Time” for managing PhD time.

  • Clarity in Expression: Aim for clarity in your writing. Express complex ideas in straightforward language, avoiding unnecessary jargon or convoluted sentences that can inflate the word count without adding substance. Example: Instead of using complex terminology in a theoretical framework, opt for clear and precise language that conveys the theoretical concepts without unnecessary embellishments.
  • Economical Word Choices: Choose words judiciously. Opt for strong, impactful words that convey your message succinctly. Trim redundant phrases and eliminate words that don’t contribute directly to your argument. Example: Instead of saying “due to the fact that,” use the more concise “because” to convey the same meaning with fewer words.
  • Strategic Use of Figures and Tables: Incorporate visuals strategically to convey information efficiently. Figures and tables can often replace lengthy textual explanations, providing a visual representation of data or concepts. Example: Instead of describing a complex set of results in paragraphs, present key findings in a well-designed table, allowing readers to grasp the information at a glance.
  • Early and Regular Feedback: Share drafts of your work with advisors and peers early in the writing process. Their feedback can identify potential issues and guide revisions, preventing the need for extensive rewrites later. Example: Submit a draft of your literature review to your advisor before completing the entire chapter. Early feedback can help refine your approach and ensure you’re on the right track.
  • Objective External Perspectives: Advisors and peers offer valuable external perspectives. They can identify areas where your explanation may be unclear or where additional details may be necessary. Example: If your research methodology is intricate, seek feedback from a peer who is not intimately familiar with your topic. Their questions and comments can reveal where additional clarification is needed for a broader audience.
  • Critical Review for Redundancy: Advisors and peers can help identify redundant sections or unnecessary details. A fresh set of eyes can pinpoint areas where content can be streamlined without compromising the depth of your argument. Example: If two sections of your dissertation cover similar ground, feedback from others can highlight the need to merge or eliminate redundant content, improving the overall flow.

Visit my articles related to PhD , Exciting Careers after PhD .

The journey through the complexities of determining the length of a Ph.D. dissertation reveals a delicate interplay of factors crucial to its scholarly impact. From understanding the significance of this academic endeavour to navigating institutional guidelines and disciplinary variances, the pursuit of balance between depth and brevity emerges as a paramount challenge.

As researchers, we must navigate the intricate landscapes of research complexity, data analysis, literature review, and methodology while maintaining a steadfast commitment to quality over quantity. The tips offered for effective time management, concise writing, and the judicious seeking of feedback underscore the strategic nature of dissertation crafting.

Ultimately, the dissertation is not just an academic requirement but a scholarly legacy—a testament to our intellectual contributions and a beacon guiding future inquiry. In this conclusion, let us recognize that the true measure of a dissertation’s success lies not solely in its length but in its enduring impact on the trajectory of knowledge within our respective fields.

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  • A Guide to Writing a PhD Thesis

Written by Ben Taylor

A PhD thesis is a work of original research all students are requiured to submit in order to succesfully complete their PhD. The thesis details the research that you carried out during the course of your doctoral degree and highlights the outcomes and conclusions reached.

The PhD thesis is the most important part of a doctoral research degree: the culmination of three or four years of full-time work towards producing an original contribution to your academic field.

Your PhD dissertation can therefore seem like quite a daunting possibility, with a hefty word count, the pressure of writing something new and, of course, the prospect of defending it at a viva once you’ve finished.

This page will give you an introduction to what you need to know about the doctoral thesis, with advice on structure, feedback, submission and more.

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Beginning your phd thesis.

The first stage of your PhD thesis will usually be the literature review . We’ve already written a detailed guide to what the PhD literature review involves , but here’s what you need to know about this stage of your PhD:

  • The literature review is a chance for you to display your knowledge and understanding of what’s already been written about your research area – this could consist of papers, articles, books, data and more
  • Rather than simply summarising what other scholars have said about your subject, you should aim to assess and analyse their arguments
  • The literature review is usually the first task of your PhD – and typically forms the first part or chapter of your dissertation

After finishing your literature review, you’ll move onto the bulk of your doctoral thesis. Of course, you’ll eventually return to the lit review to make sure it’s up-to-date and contains any additional material you may have come across during the course of your research.

PhD thesis research

What sets your PhD thesis apart from previous university work you’ve done is the fact that it should represent an original contribution to academic knowledge . The form that this original contribution takes will largely depend on your discipline.

  • Arts and Humanities dissertations usually involve investigating different texts, sources and theoretical frameworks
  • Social Sciences are more likely to focus on qualitive or quantitative surveys and case studies
  • STEM subjects involve designing, recording and analysing experiments, using their data to prove or disprove a set theory

Depending on the nature of your research, you may ‘write up’ your findings as you go, or leave it until the dedicated ‘writing-up’ period, usually in the third year of your PhD. Whatever your approach, it’s vital to keep detailed notes of your sources and methods – it’ll make your life a lot easier when it comes to using references in your dissertation further down the line.

PhD thesis vs dissertation

It’s common to use the terms ‘thesis’ and ‘dissertation’ interchangeably, but strictly speaking there is a difference in meaning between them:

  • Your thesis is your argument. It’s the conclusions you’ve arrived at through surveying existing scholarship in your literature review and combining this with the results of your own original research.
  • Your dissertation is the written statement of your thesis. This is where you lay out your findings in a way that systematically demonstrates and proves your conclusion.

Put simply, you submit a dissertation, but it’s the thesis it attempts to prove that will form the basis of your PhD.

What this also means is that the writing up of your dissertation generally follows the formulation of your doctoral thesis (it’s fairly difficult to write up a PhD before you know what you want to say!).

However, it’s normal for universities and academics to use either (or both) terms when describing PhD research – indeed, we use both ‘thesis’ and ‘dissertation’ across our website.

Can I use my Masters research in my PhD thesis?

If you’re studying an MPhil, it’s normal to ‘ upgrade ’ it into a PhD. Find mroe information on our guide.

PhD thesis structure

Having completed your initial literature review and conducted your original research, you’ll move onto the next phase of your doctoral dissertation, beginning to sketch out a plan that your thesis will follow.

The exact structure and make-up of your doctoral thesis will vary between fields, but this is the general template that many dissertations follow:

  • Introduction – This sets out the key objectives of your project, why the work is significant and what its original contribution to knowledge is. At this point you may also summarise the remaining chapters, offering an abstract of the argument you will go on to develop.
  • Literature review – The introduction will generally lead into a write-up of your literature review. Here you’ll outline the scholarly context for your project. You’ll acknowledge where existing research has shaped your PhD, but emphasise the unique nature of your work.
  • Chapters – After you’ve finished introducing your research, you’ll begin the bulk of the dissertation. This will summarise your results and begin explaining the argument you have based on them. Some PhDs will also include specific chapters on methodology and / or a recreation of the data you have developed. Others will develop your argument over a series of stages, drawing on sources and results as relevant.
  • Conclusion – The dissertation will end with a final chapter that pulls together the different elements of your argument and the evidence you have provided for it. You’ll restate the significance of your project (and its all-important original contribution to knowledge). You may also take the opportunity to acknowledge the potential for further work or opportunities to apply your findings outside academia.
  • Bibliography and appendices – At the end of your thesis, you’ll need to include a full list of the books, articles and data you’ve referenced in a bibliography. You may also need to provide additional information in the form of an appendix.

How long is a PhD thesis?

The length of a PhD thesis varies from subject to subject, but all are far longer than those for undergraduate or Masters degrees. Your university will usually set an upper limit – typically between 70,000 and 100,000 words, with most dissertations coming in at around 80,000 words.

Generally speaking, STEM-based theses will be a little shorter than those in the Arts, Humanities and Social Sciences.

Different universities (and departments) will have different policies regarding what counts towards the PhD thesis word count, so make sure you’re aware what is expected of you. Check with your supervisor whether references, the bibliography or appendices are included in the word count for your dissertation.

How many chapters should a PhD thesis have?

There’s no hard and fast rule for the numbers of chapters in a PhD thesis, but most will have four or five chapters (in addition to the introduction and conclusion). This is the sort of thing you’ll discuss with your supervisor when planning out your research.

Writing up your PhD thesis

Once you’ve conducted your research and settled upon your thesis, there’s only one thing left to do: get it down on paper. Appropriately enough, this final part of a PhD is often referred to as the ‘ writing up period ’.

This is when you produce the final dissertation, which will be submitted as the basis for your viva voce exam. The nature of this task can vary from PhD to PhD.

In some cases you may already have a large amount of chapter drafts and other material. ‘Writing up’ therefore becomes a process of re-drafting and assembling this work into a final dissertation. This approach is common in Arts and Humanities subjects where PhD students tend to work through stages of a project, writing as they go.

Alternatively, you may have spent most of your PhD collecting and analysing data. If so, you’ll now ‘write up’ your findings and conclusions in order to produce your final dissertation. This approach is more common in STEM subjects, where experiment design and data collection are much more resource intensive.

Whatever process you adopt, you’ll now produce a persuasive and coherent statement of your argument, ready to submit for examination.

PhD thesis feedback

Your supervisor will usually give you feedback on each chapter draft, and then feedback on the overall completed dissertation draft before you submit it for examination. When the thesis is a work-in-progress, their comments will be a chance for them to make sure your research is going in the right direction and for you to ask their advice on anything you’re concerned about. This feedback will normally be given in the form of a supervisory meeting.

Although your PhD supervisor will be happy to give you advice on your work, you shouldn’t expect them to be an editor – it’s not their responsibility to correct grammatical or spelling mistakes, and you should make sure any drafts you submit to them are as error-free as possible. Similarly, they won’t be willing to edit your work down to fit a particular word count.

Finishing your PhD thesis

When you’ve finished the final draft of your doctoral thesis and it’s been approved by your supervisor, you’ll submit it for examination. This is when it’s sent to the examiners who will conduct your viva.

Submitting your thesis involves printing enough copies for your examiners and the university’s repository. Don’t leave this until the last minute – printing multiple copies of a 300-page document is a substantial undertaking and you should always allow enough time to account for any possible glitches or issues with the printing process.

Your viva will usually take place within three months of submitting your thesis. You can find out more in our dedicated guide to the PhD viva . After your viva, your examiners will give you a report that confirms whether or not you need to make any changes to your thesis, with several different potential outcomes:

  • Pass – You’ve received your doctoral qualification!
  • Minor corrections – These are usually fairly small edits, tweaks and improvements to your thesis, which you’ll be given three months to implement
  • Major corrections – For these substantial changes, you may have to rewrite part of your dissertation or complete extra research, with a six-month deadline

Most PhD students will need to fix some corrections with their thesis (hopefully not major ones). It’s very rare for a dissertation to be failed.

Once you’ve made any necessary changes to your thesis, you’ll submit it one last time (usually electronically).

If you have plans to publish all or part of your work, you may want to request an embargo so that it won’t be visible to the public for a certain time. 12 months is a fairly standard time period for this, although you may want to ask for a longer embargo if you know that you want to turn your thesis into a book or monograph.

Take a look at our programme listings and find the perfect PhD for you.

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Ben worked in the FindAPhD content team from 2017 to 2022, starting as an Assistant Content Writer and leaving as Student Content Manager. He focused on producing well-researched advice across a range of topics related to postgraduate study. Ben has a Bachelors degree in English Literature from the University of Sheffield and a Masters from the University of Amsterdam. Having also spent a semester at the University of Helsinki through the Erasmus programme, he’s no stranger to study abroad (or cold weather!).

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The 8 Most Asked Questions About Dissertations

Blog #110 - The 8 Most Asked Questions About Dissertations

A Ph.D. represents the highest level of education in most fields. People who earn this degree earn the honorific of “doctor” and are considered experts in their field. A doctoral degree is often a prerequisite for teaching at the highest levels in academia or ascending career ladders in education, the government and the nonprofit space.

In 2020 , doctoral degree holders had median weekly earnings of $1,885 and an unemployment rate of 2.5%—lower than any other group. And yet, the dissertation is often a major barrier to completing a doctorate and realizing its many financial and personal benefits. 

So what is a dissertation, and what role does it play in your educational trajectory? At SNU, we value exceptional dissertations and integrate the writing process into your coursework. Here are the most common questions we hear about writing dissertations and earning your doctorate.

1. What is a dissertation?

A dissertation is a published piece of academic research. Through your dissertation research , you become an expert in a specific academic niche. After writing your dissertation, you then defend it to a committee of experts in the field. A dissertation is integral to the process of earning a doctoral degree, contributing innovative ideas to your chosen field. Until you have written, published and defended a dissertation, you can’t graduate from a doctoral-level program.

2. Why are dissertations so important?

Dissertations are the crucial piece of research in most doctoral-level programs. The process of writing, researching and amending the dissertation serves several important goals: 

  • It contributes novel research to the field, supporting innovation, growth and ongoing scholarship. 
  • It requires students to write a substantive piece of academic research across many semesters, sharpening research skills and expertise. 
  • It demands that s tudents defend their research, ensuring strong communication and critical thinking skills. 
  • It requires deep, comprehensive research—including a literature review—improving reading comprehension and writing skills. 
  • It is a challenging project that serves as a test of the skills you might use as an academic professional in your chosen field. 
  • It helps establish new members of an academic discipline as contributors to the field. 
  • It fosters academic connections as you interview sources and defend your work.

3. Why do so many students struggle with the dissertation?

The dissertation process is difficult. However, this difficulty establishes the credibility of doctoral degrees, proving that the student can commit to long-term, intensive research and become a true subject-matter expert. 

However, for many adult learners, the dissertation proves especially challenging thanks to work-life balance difficulties, financial constraints and lack of family or institutional support. At SNU, we know that a dissertation is critical to your growth as an academic. But we also know that institutional support can make a big difference in your ability to finish this impressive work. That’s why we integrate dissertation writing into our curriculum, rather than leaving you to do it all on your own time. 

One study suggests that more than half of students never complete their dissertation. Other research indicates that academic reforms that help students with their work reduce dropout rates, ensuring more students complete their dissertation and earn the coveted title of doctor.

4. How long is a dissertation?

Most dissertations are 100 pages or longer — roughly the length of a book. The specific length of your dissertation depends on the type of research, how much research exists in the field and similar factors. The goal of dissertation writing is not to attain a specific length, but to be comprehensive and thoughtful. It anticipates and answers potential objections, gives appropriate credit to the source materials and reviews prior work in the field. 

Your dissertation review committee is more interested in a comprehensive dissertation that displays your critical thinking and research skills than they are in a dissertation of a specific length. Excessive wordiness without value wastes a reader’s time.  

The right length for a dissertation depends on several factors: 

  • How much research already exists in the field?
  • What field are you publishing in?
  • What type of research are you doing?
  • Is your research controversial?
  • How much space do you need to explain your research and address objections?

Put simply: A dissertation should be long enough to comprehensively cover the subject, but no longer.

5. How do you write a dissertation?

In general, the dissertation process follows this schedule: 

  • Research the field and identify potential topics. 
  • Meet with an advisor to choose and improve a topic. 
  • Perform a literature review. 
  • Conduct new research. 
  • Write the dissertation. 
  • Edit the dissertation. 
  • Defend the dissertation.

Each step involves weeks to months of work and many phases of revision, reevaluation and research. At SNU, we incorporate many phases of the writing and research process into your coursework. This ensures you are on track to graduate and addresses dissertation writing challenges before they snowball into a serious problem.

6. When should you start writing a dissertation?

The dissertation writing process should begin almost as soon as you enroll in school. That doesn’t necessarily mean you need to have content written on your first day of class. Instead, you will need to engage in substantive pre-writing that includes: 

  • Familiarizing yourself with relevant research in the field. 
  • Developing an opinion on recent research. 
  • Designing your research to address a clear and narrowly defined topic. 

As you hone in on your topic, you can begin the writing and research portion of the project. In most cases, this starts within a semester or two of enrollment. A dissertation is not something you can leave until the last semester or shortly before graduation. SNU ensures this doesn’t happen by integrating the writing process into your coursework. You will start working on your dissertation early, preventing you from becoming overwhelmed.

7. How do you cite a dissertation?

A dissertation is a published scholarly work. Each style manual has specific instructions for citing a dissertation, so be sure to consult the style manual you’re using. 

You can cite other dissertations in your dissertation. In many cases, dissertations can provide useful starting points for your research. The literature reviews they contain may also help with your literature review.

8. How do you choose a school for your dissertation?

Choosing the right school for your dissertation can mean the difference between finishing this scholarly work and languishing at the dreaded “ all-but-dissertation” (ABD) stage . SNU specializes in supporting adult learners by encouraging intensive research and protecting your work-life balance. 

At SNU, your dissertation is a part of your coursework . You will get support from start to finish, including a dissertation advisor who is an expert in your chosen field. We are here for you, and we want to see you succeed. 

To learn more about our course offerings and compare online vs. in-person  education, check out our free guide, “Choose Your Path: Online vs. On-Campus  Education."

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How Long is a Dissertation for a PhD?

How long is a dissertation? This is one of the most common questions asked by current or aspiring doctoral students.

How Long is a Dissertation for a PhD

A dissertation is an extensive research project that contributes fresh knowledge to the author’s field. Many doctoral programs require students to write, defend, and revise a dissertation to earn their degrees.

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This article explores the average length of a dissertation and various factors that affect the scope of these papers.

How Long Is a Dissertation?

Man taking PhD, working on his dissertation

For most graduate students, the dissertation is the longest and most time-consuming paper they write throughout their education. This project aims to address a research question in the student’s field and build on existing bodies of scholarship.

Additionally, the dissertation showcases the student’s mastery of research methodologies. Because a dissertation must accomplish several goals, they tend to be ambitious and lengthy.

Most dissertations are 100 to 250 pages long. But many factors impact the length of a dissertation, including:

  • Academic field . Each discipline has different norms regarding dissertation content and length. For instance, literature dissertations often include extended close readings of texts, while science dissertations focus more on data analysis and research design. As a result, humanities dissertations are typically longer.
  • Institutional requirements . Most colleges and universities specify a minimum number of pages for the dissertation. You can ask your academic advisor or the graduate studies office about specific dissertation guidelines.
  • Topic complexity . Broad or complex research questions may require more data and analysis to answer, resulting in a longer dissertation.
  • Individual writing style . Some doctoral students enjoy writing elaborate and detailed sentences, while others prefer to get straight to the point.
  • Research methodologies . The approaches and methods used in the research can dramatically affect the length of the dissertation. For example, some dissertations include case studies, which may require lengthy explanations and analyses. Others use quantitative research methods and may include a number of charts and figures.
  • Committee feedback . Graduate students typically write their dissertations under the supervision of a faculty committee. These professors may recommend adding or cutting material during revision, impacting the dissertation’s final length.
  • Future goals . Some doctoral students plan to revise their dissertation and publish it as an academic monograph after graduation. Writing a longer dissertation gives them more material to adapt for their book.

Reading dissertations from your department and field can give you a better sense of the typical length.

How Long Are Dissertations by Discipline?

Woman doing research for her dissertation

The answer to “how long is a doctoral dissertation?” varies by field. In some disciplines, it’s common for graduate students to spend several years writing extensive manuscripts. Other fields produce shorter dissertations of approximately 100 pages.

Here are a few examples of dissertation norms for different disciplines:

  • Arts : Students studying art and creative writing may produce a creative dissertation. These projects typically consist of a theoretical introduction and a creative project, such as a poetry collection or a series of paintings. Creative dissertations may have fewer than 100 written pages, but the artistic elements can still be time-consuming.
  • Chemistry : These dissertations typically range from 100 to 150 pages. They typically describe experimental methodologies and draw conclusions from the author’s findings.
  • Computer science : Dissertations in this field are generally 50 to 150 pages long and often include quantitative data and algorithms.
  • English : PhD students in this field frequently write lengthy literature reviews and provide in-depth analyses of novels and other texts. English dissertations may range from 200 to 350 pages.

Faculty in your discipline can help you understand dissertation expectations.

Average Dissertation Length Per Chapter

Man working on a chapter of his dissertation

Dissertations typically have similar components and structures across disciplines. Here are six common chapters and their average lengths:

  • Introduction : The first chapter introduces the primary research topic and explains its relevance to the field. The introduction also provides a brief overview of the investigation method. Most introductions are 10 to 25 pages long.
  • Literature review : This chapter situates the project within the broader discipline. The author analyzes existing sources already written on their research topic and identifies biases or gaps that their own project remedies. Humanities dissertations tend to have 20 to 30 page literature reviews, while STEM dissertations devote 10 to 20 pages to this component.
  • Methodology : The third chapter typically focuses on the methods and techniques used to gather data. Ideally, this description should contain all the details that another researcher would need to duplicate the experiment and verify the results. The methodology chapter ranges from 15 to 25 pages, depending on the complexity of the research.
  • Findings : This section analyzes the collected data and discusses the results of the research project. It often includes charts, diagrams, and other data visualizations illustrating the findings. This chapter could be 20 to 50 pages, depending on the number of images and the amount of text needed to thoroughly examine the results.
  • Discussion : This chapter explains the significance of the results. The author may also compare their findings to previously published scholarship. The discussion is typically 15 to 25 pages.
  • Conclusion : The author summarizes their findings, acknowledges the limitations of their research, and suggests avenues for future studies. Most conclusions consist of 15 to 20 pages.

Some dissertations deviate from this format. For instance, English dissertations may devote several chapters to critical analyses of different genres or authors.

What Is a Dissertation?

students researching together for their dissertation

A dissertation is a lengthy written document that a doctoral student produces based on their original research. This project demonstrates the student’s expertise in their area of specialty and contributes to existing knowledge in the field.

Dissertations typically fall into one of two categories. Empirical dissertations require students to collect and analyze data. For instance, a psychology student may interview people about their mental health, while a marketing student could interpret sales data.

Theoretical dissertations focus on analyzing existing scholarship and secondary sources. For example, a literature student might research psychoanalysis and apply this approach to superhero comics.

How Many Pages Is a Dissertation?

Man reviewing some printouts of his dissertation

The length of a dissertation varies by discipline, institution, and research project. Some dissertations can be as short as 50 pages, while others may total 400 pages. But the average dissertation ranges from 100 pages to 250 pages.

Dissertations in the humanities and social sciences are typically the most extensive. These projects often include detailed analyses, case studies, and literature reviews. By contrast, dissertations in STEM fields like economics and mathematics are often 150 pages or less.

Students in these disciplines frequently use mathematical formulas and data visualizations to prove their findings, resulting in less text.

Why Are Dissertations So Long?

Woman reading her dissertation

Dissertations are typically the most extended assignments that students complete in graduate school. Several factors contribute to their length, including:

  • Depth of research . Doctoral students can spend several years researching their topic and analyzing data. This extensive work often takes hundreds of pages to summarize and explain.
  • Literature review . Most fields have extensive bodies of scholarship, so students spend many pages analyzing sources and contextualizing their projects.
  • Bibliography . Dissertations often cite dozens or even hundreds of sources, resulting in lengthy bibliographies.

Also, colleges often require dissertations to include additional materials like abstracts and tables of content.

What’s the Difference Between a Dissertation vs. Thesis?

Depending on the type of graduate program you enroll in, you may be required to write a dissertation or thesis. Here are the main differences between a thesis vs. dissertation .

If you want to develop your own concepts or theories, a dissertation can help you accomplish this goal.

What’s the Difference Between a Capstone vs. Dissertation?

There are doctorate programs with no dissertation. Like some online doctoral programs in education without dissertation requirements, they have a capstone project instead. Here’s a comparison of a dissertation vs. capstone .

Your career goals can help determine if a capstone or dissertation is right for you.

How Long Is a Dissertation for a PhD Degree?

students taking PhD degree, working on their dissertation

People often wonder, “How long is a PhD dissertation?” These projects are typically 100 to 250 pages long, though dissertations on complex topics may total more than 400 pages.

Writing a dissertation allows you to develop advanced expertise on your chosen research topic. Many students also publish portions of their dissertations as peer-reviewed articles and share their findings at conferences. These activities enhance your CV and may make you more competitive for academic jobs.

You can kickstart your doctoral journey today by researching accredited online programs in your field.

how long is a dissertation for phd

Frequently asked questions

How long is a dissertation.

Dissertation word counts vary widely across different fields, institutions, and levels of education:

  • An undergraduate dissertation is typically 8,000–15,000 words
  • A master’s dissertation is typically 12,000–50,000 words
  • A PhD thesis is typically book-length: 70,000–100,000 words

However, none of these are strict guidelines – your word count may be lower or higher than the numbers stated here. Always check the guidelines provided by your university to determine how long your own dissertation should be.

Frequently asked questions: Dissertation

A dissertation prospectus or proposal describes what or who you plan to research for your dissertation. It delves into why, when, where, and how you will do your research, as well as helps you choose a type of research to pursue. You should also determine whether you plan to pursue qualitative or quantitative methods and what your research design will look like.

It should outline all of the decisions you have taken about your project, from your dissertation topic to your hypotheses and research objectives , ready to be approved by your supervisor or committee.

Note that some departments require a defense component, where you present your prospectus to your committee orally.

A thesis is typically written by students finishing up a bachelor’s or Master’s degree. Some educational institutions, particularly in the liberal arts, have mandatory theses, but they are often not mandatory to graduate from bachelor’s degrees. It is more common for a thesis to be a graduation requirement from a Master’s degree.

Even if not mandatory, you may want to consider writing a thesis if you:

  • Plan to attend graduate school soon
  • Have a particular topic you’d like to study more in-depth
  • Are considering a career in research
  • Would like a capstone experience to tie up your academic experience

The conclusion of your thesis or dissertation should include the following:

  • A restatement of your research question
  • A summary of your key arguments and/or results
  • A short discussion of the implications of your research

The conclusion of your thesis or dissertation shouldn’t take up more than 5–7% of your overall word count.

For a stronger dissertation conclusion , avoid including:

  • Important evidence or analysis that wasn’t mentioned in the discussion section and results section
  • Generic concluding phrases (e.g. “In conclusion …”)
  • Weak statements that undermine your argument (e.g., “There are good points on both sides of this issue.”)

Your conclusion should leave the reader with a strong, decisive impression of your work.

While it may be tempting to present new arguments or evidence in your thesis or disseration conclusion , especially if you have a particularly striking argument you’d like to finish your analysis with, you shouldn’t. Theses and dissertations follow a more formal structure than this.

All your findings and arguments should be presented in the body of the text (more specifically in the discussion section and results section .) The conclusion is meant to summarize and reflect on the evidence and arguments you have already presented, not introduce new ones.

A theoretical framework can sometimes be integrated into a  literature review chapter , but it can also be included as its own chapter or section in your dissertation . As a rule of thumb, if your research involves dealing with a lot of complex theories, it’s a good idea to include a separate theoretical framework chapter.

A literature review and a theoretical framework are not the same thing and cannot be used interchangeably. While a theoretical framework describes the theoretical underpinnings of your work, a literature review critically evaluates existing research relating to your topic. You’ll likely need both in your dissertation .

While a theoretical framework describes the theoretical underpinnings of your work based on existing research, a conceptual framework allows you to draw your own conclusions, mapping out the variables you may use in your study and the interplay between them.

A thesis or dissertation outline is one of the most critical first steps in your writing process. It helps you to lay out and organize your ideas and can provide you with a roadmap for deciding what kind of research you’d like to undertake.

Generally, an outline contains information on the different sections included in your thesis or dissertation , such as:

  • Your anticipated title
  • Your abstract
  • Your chapters (sometimes subdivided into further topics like literature review , research methods , avenues for future research, etc.)

When you mention different chapters within your text, it’s considered best to use Roman numerals for most citation styles. However, the most important thing here is to remain consistent whenever using numbers in your dissertation .

In most styles, the title page is used purely to provide information and doesn’t include any images. Ask your supervisor if you are allowed to include an image on the title page before doing so. If you do decide to include one, make sure to check whether you need permission from the creator of the image.

Include a note directly beneath the image acknowledging where it comes from, beginning with the word “ Note .” (italicized and followed by a period). Include a citation and copyright attribution . Don’t title, number, or label the image as a figure , since it doesn’t appear in your main text.

Definitional terms often fall into the category of common knowledge , meaning that they don’t necessarily have to be cited. This guidance can apply to your thesis or dissertation glossary as well.

However, if you’d prefer to cite your sources , you can follow guidance for citing dictionary entries in MLA or APA style for your glossary.

A glossary is a collection of words pertaining to a specific topic. In your thesis or dissertation, it’s a list of all terms you used that may not immediately be obvious to your reader. In contrast, an index is a list of the contents of your work organized by page number.

The title page of your thesis or dissertation goes first, before all other content or lists that you may choose to include.

The title page of your thesis or dissertation should include your name, department, institution, degree program, and submission date.

Glossaries are not mandatory, but if you use a lot of technical or field-specific terms, it may improve readability to add one to your thesis or dissertation. Your educational institution may also require them, so be sure to check their specific guidelines.

A glossary or “glossary of terms” is a collection of words pertaining to a specific topic. In your thesis or dissertation, it’s a list of all terms you used that may not immediately be obvious to your reader. Your glossary only needs to include terms that your reader may not be familiar with, and is intended to enhance their understanding of your work.

A glossary is a collection of words pertaining to a specific topic. In your thesis or dissertation, it’s a list of all terms you used that may not immediately be obvious to your reader. In contrast, dictionaries are more general collections of words.

An abbreviation is a shortened version of an existing word, such as Dr. for Doctor. In contrast, an acronym uses the first letter of each word to create a wholly new word, such as UNESCO (an acronym for the United Nations Educational, Scientific and Cultural Organization).

As a rule of thumb, write the explanation in full the first time you use an acronym or abbreviation. You can then proceed with the shortened version. However, if the abbreviation is very common (like PC, USA, or DNA), then you can use the abbreviated version from the get-go.

Be sure to add each abbreviation in your list of abbreviations !

If you only used a few abbreviations in your thesis or dissertation , you don’t necessarily need to include a list of abbreviations .

If your abbreviations are numerous, or if you think they won’t be known to your audience, it’s never a bad idea to add one. They can also improve readability, minimizing confusion about abbreviations unfamiliar to your reader.

A list of abbreviations is a list of all the abbreviations that you used in your thesis or dissertation. It should appear at the beginning of your document, with items in alphabetical order, just after your table of contents .

Your list of tables and figures should go directly after your table of contents in your thesis or dissertation.

Lists of figures and tables are often not required, and aren’t particularly common. They specifically aren’t required for APA-Style, though you should be careful to follow their other guidelines for figures and tables .

If you have many figures and tables in your thesis or dissertation, include one may help you stay organized. Your educational institution may require them, so be sure to check their guidelines.

A list of figures and tables compiles all of the figures and tables that you used in your thesis or dissertation and displays them with the page number where they can be found.

The table of contents in a thesis or dissertation always goes between your abstract and your introduction .

You may acknowledge God in your dissertation acknowledgements , but be sure to follow academic convention by also thanking the members of academia, as well as family, colleagues, and friends who helped you.

A literature review is a survey of credible sources on a topic, often used in dissertations , theses, and research papers . Literature reviews give an overview of knowledge on a subject, helping you identify relevant theories and methods, as well as gaps in existing research. Literature reviews are set up similarly to other  academic texts , with an introduction , a main body, and a conclusion .

An  annotated bibliography is a list of  source references that has a short description (called an annotation ) for each of the sources. It is often assigned as part of the research process for a  paper .  

In a thesis or dissertation, the discussion is an in-depth exploration of the results, going into detail about the meaning of your findings and citing relevant sources to put them in context.

The conclusion is more shorter and more general: it concisely answers your main research question and makes recommendations based on your overall findings.

In the discussion , you explore the meaning and relevance of your research results , explaining how they fit with existing research and theory. Discuss:

  • Your  interpretations : what do the results tell us?
  • The  implications : why do the results matter?
  • The  limitation s : what can’t the results tell us?

The results chapter or section simply and objectively reports what you found, without speculating on why you found these results. The discussion interprets the meaning of the results, puts them in context, and explains why they matter.

In qualitative research , results and discussion are sometimes combined. But in quantitative research , it’s considered important to separate the objective results from your interpretation of them.

Results are usually written in the past tense , because they are describing the outcome of completed actions.

The results chapter of a thesis or dissertation presents your research results concisely and objectively.

In quantitative research , for each question or hypothesis , state:

  • The type of analysis used
  • Relevant results in the form of descriptive and inferential statistics
  • Whether or not the alternative hypothesis was supported

In qualitative research , for each question or theme, describe:

  • Recurring patterns
  • Significant or representative individual responses
  • Relevant quotations from the data

Don’t interpret or speculate in the results chapter.

To automatically insert a table of contents in Microsoft Word, follow these steps:

  • Apply heading styles throughout the document.
  • In the references section in the ribbon, locate the Table of Contents group.
  • Click the arrow next to the Table of Contents icon and select Custom Table of Contents.
  • Select which levels of headings you would like to include in the table of contents.

Make sure to update your table of contents if you move text or change headings. To update, simply right click and select Update Field.

All level 1 and 2 headings should be included in your table of contents . That means the titles of your chapters and the main sections within them.

The contents should also include all appendices and the lists of tables and figures, if applicable, as well as your reference list .

Do not include the acknowledgements or abstract in the table of contents.

The abstract appears on its own page in the thesis or dissertation , after the title page and acknowledgements but before the table of contents .

An abstract for a thesis or dissertation is usually around 200–300 words. There’s often a strict word limit, so make sure to check your university’s requirements.

In a thesis or dissertation, the acknowledgements should usually be no longer than one page. There is no minimum length.

The acknowledgements are generally included at the very beginning of your thesis , directly after the title page and before the abstract .

Yes, it’s important to thank your supervisor(s) in the acknowledgements section of your thesis or dissertation .

Even if you feel your supervisor did not contribute greatly to the final product, you must acknowledge them, if only for a very brief thank you. If you do not include your supervisor, it may be seen as a snub.

In the acknowledgements of your thesis or dissertation, you should first thank those who helped you academically or professionally, such as your supervisor, funders, and other academics.

Then you can include personal thanks to friends, family members, or anyone else who supported you during the process.

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You can find all the citation styles and locales used in the Scribbr Citation Generator in our publicly accessible repository on Github .

how long is a dissertation for phd

How To Write A Dissertation Or Thesis

8 straightforward steps to craft an a-grade dissertation.

By: Derek Jansen (MBA) Expert Reviewed By: Dr Eunice Rautenbach | June 2020

Writing a dissertation or thesis is not a simple task. It takes time, energy and a lot of will power to get you across the finish line. It’s not easy – but it doesn’t necessarily need to be a painful process. If you understand the big-picture process of how to write a dissertation or thesis, your research journey will be a lot smoother.  

In this post, I’m going to outline the big-picture process of how to write a high-quality dissertation or thesis, without losing your mind along the way. If you’re just starting your research, this post is perfect for you. Alternatively, if you’ve already submitted your proposal, this article which covers how to structure a dissertation might be more helpful.

How To Write A Dissertation: 8 Steps

  • Clearly understand what a dissertation (or thesis) is
  • Find a unique and valuable research topic
  • Craft a convincing research proposal
  • Write up a strong introduction chapter
  • Review the existing literature and compile a literature review
  • Design a rigorous research strategy and undertake your own research
  • Present the findings of your research
  • Draw a conclusion and discuss the implications

Start writing your dissertation

Step 1: Understand exactly what a dissertation is

This probably sounds like a no-brainer, but all too often, students come to us for help with their research and the underlying issue is that they don’t fully understand what a dissertation (or thesis) actually is.

So, what is a dissertation?

At its simplest, a dissertation or thesis is a formal piece of research , reflecting the standard research process . But what is the standard research process, you ask? The research process involves 4 key steps:

  • Ask a very specific, well-articulated question (s) (your research topic)
  • See what other researchers have said about it (if they’ve already answered it)
  • If they haven’t answered it adequately, undertake your own data collection and analysis in a scientifically rigorous fashion
  • Answer your original question(s), based on your analysis findings

 A dissertation or thesis is a formal piece of research, reflecting the standard four step academic research process.

In short, the research process is simply about asking and answering questions in a systematic fashion . This probably sounds pretty obvious, but people often think they’ve done “research”, when in fact what they have done is:

  • Started with a vague, poorly articulated question
  • Not taken the time to see what research has already been done regarding the question
  • Collected data and opinions that support their gut and undertaken a flimsy analysis
  • Drawn a shaky conclusion, based on that analysis

If you want to see the perfect example of this in action, look out for the next Facebook post where someone claims they’ve done “research”… All too often, people consider reading a few blog posts to constitute research. Its no surprise then that what they end up with is an opinion piece, not research. Okay, okay – I’ll climb off my soapbox now.

The key takeaway here is that a dissertation (or thesis) is a formal piece of research, reflecting the research process. It’s not an opinion piece , nor a place to push your agenda or try to convince someone of your position. Writing a good dissertation involves asking a question and taking a systematic, rigorous approach to answering it.

If you understand this and are comfortable leaving your opinions or preconceived ideas at the door, you’re already off to a good start!

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Step 2: Find a unique, valuable research topic

As we saw, the first step of the research process is to ask a specific, well-articulated question. In other words, you need to find a research topic that asks a specific question or set of questions (these are called research questions ). Sounds easy enough, right? All you’ve got to do is identify a question or two and you’ve got a winning research topic. Well, not quite…

A good dissertation or thesis topic has a few important attributes. Specifically, a solid research topic should be:

Let’s take a closer look at these:

Attribute #1: Clear

Your research topic needs to be crystal clear about what you’re planning to research, what you want to know, and within what context. There shouldn’t be any ambiguity or vagueness about what you’ll research.

Here’s an example of a clearly articulated research topic:

An analysis of consumer-based factors influencing organisational trust in British low-cost online equity brokerage firms.

As you can see in the example, its crystal clear what will be analysed (factors impacting organisational trust), amongst who (consumers) and in what context (British low-cost equity brokerage firms, based online).

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how long is a dissertation for phd

Attribute #2:   Unique

Your research should be asking a question(s) that hasn’t been asked before, or that hasn’t been asked in a specific context (for example, in a specific country or industry).

For example, sticking organisational trust topic above, it’s quite likely that organisational trust factors in the UK have been investigated before, but the context (online low-cost equity brokerages) could make this research unique. Therefore, the context makes this research original.

One caveat when using context as the basis for originality – you need to have a good reason to suspect that your findings in this context might be different from the existing research – otherwise, there’s no reason to warrant researching it.

Attribute #3: Important

Simply asking a unique or original question is not enough – the question needs to create value. In other words, successfully answering your research questions should provide some value to the field of research or the industry. You can’t research something just to satisfy your curiosity. It needs to make some form of contribution either to research or industry.

For example, researching the factors influencing consumer trust would create value by enabling businesses to tailor their operations and marketing to leverage factors that promote trust. In other words, it would have a clear benefit to industry.

So, how do you go about finding a unique and valuable research topic? We explain that in detail in this video post – How To Find A Research Topic . Yeah, we’ve got you covered 😊

Step 3: Write a convincing research proposal

Once you’ve pinned down a high-quality research topic, the next step is to convince your university to let you research it. No matter how awesome you think your topic is, it still needs to get the rubber stamp before you can move forward with your research. The research proposal is the tool you’ll use for this job.

So, what’s in a research proposal?

The main “job” of a research proposal is to convince your university, advisor or committee that your research topic is worthy of approval. But convince them of what? Well, this varies from university to university, but generally, they want to see that:

  • You have a clearly articulated, unique and important topic (this might sound familiar…)
  • You’ve done some initial reading of the existing literature relevant to your topic (i.e. a literature review)
  • You have a provisional plan in terms of how you will collect data and analyse it (i.e. a methodology)

At the proposal stage, it’s (generally) not expected that you’ve extensively reviewed the existing literature , but you will need to show that you’ve done enough reading to identify a clear gap for original (unique) research. Similarly, they generally don’t expect that you have a rock-solid research methodology mapped out, but you should have an idea of whether you’ll be undertaking qualitative or quantitative analysis , and how you’ll collect your data (we’ll discuss this in more detail later).

Long story short – don’t stress about having every detail of your research meticulously thought out at the proposal stage – this will develop as you progress through your research. However, you do need to show that you’ve “done your homework” and that your research is worthy of approval .

So, how do you go about crafting a high-quality, convincing proposal? We cover that in detail in this video post – How To Write A Top-Class Research Proposal . We’ve also got a video walkthrough of two proposal examples here .

Step 4: Craft a strong introduction chapter

Once your proposal’s been approved, its time to get writing your actual dissertation or thesis! The good news is that if you put the time into crafting a high-quality proposal, you’ve already got a head start on your first three chapters – introduction, literature review and methodology – as you can use your proposal as the basis for these.

Handy sidenote – our free dissertation & thesis template is a great way to speed up your dissertation writing journey.

What’s the introduction chapter all about?

The purpose of the introduction chapter is to set the scene for your research (dare I say, to introduce it…) so that the reader understands what you’ll be researching and why it’s important. In other words, it covers the same ground as the research proposal in that it justifies your research topic.

What goes into the introduction chapter?

This can vary slightly between universities and degrees, but generally, the introduction chapter will include the following:

  • A brief background to the study, explaining the overall area of research
  • A problem statement , explaining what the problem is with the current state of research (in other words, where the knowledge gap exists)
  • Your research questions – in other words, the specific questions your study will seek to answer (based on the knowledge gap)
  • The significance of your study – in other words, why it’s important and how its findings will be useful in the world

As you can see, this all about explaining the “what” and the “why” of your research (as opposed to the “how”). So, your introduction chapter is basically the salesman of your study, “selling” your research to the first-time reader and (hopefully) getting them interested to read more.

How do I write the introduction chapter, you ask? We cover that in detail in this post .

The introduction chapter is where you set the scene for your research, detailing exactly what you’ll be researching and why it’s important.

Step 5: Undertake an in-depth literature review

As I mentioned earlier, you’ll need to do some initial review of the literature in Steps 2 and 3 to find your research gap and craft a convincing research proposal – but that’s just scratching the surface. Once you reach the literature review stage of your dissertation or thesis, you need to dig a lot deeper into the existing research and write up a comprehensive literature review chapter.

What’s the literature review all about?

There are two main stages in the literature review process:

Literature Review Step 1: Reading up

The first stage is for you to deep dive into the existing literature (journal articles, textbook chapters, industry reports, etc) to gain an in-depth understanding of the current state of research regarding your topic. While you don’t need to read every single article, you do need to ensure that you cover all literature that is related to your core research questions, and create a comprehensive catalogue of that literature , which you’ll use in the next step.

Reading and digesting all the relevant literature is a time consuming and intellectually demanding process. Many students underestimate just how much work goes into this step, so make sure that you allocate a good amount of time for this when planning out your research. Thankfully, there are ways to fast track the process – be sure to check out this article covering how to read journal articles quickly .

Literature Review Step 2: Writing up

Once you’ve worked through the literature and digested it all, you’ll need to write up your literature review chapter. Many students make the mistake of thinking that the literature review chapter is simply a summary of what other researchers have said. While this is partly true, a literature review is much more than just a summary. To pull off a good literature review chapter, you’ll need to achieve at least 3 things:

  • You need to synthesise the existing research , not just summarise it. In other words, you need to show how different pieces of theory fit together, what’s agreed on by researchers, what’s not.
  • You need to highlight a research gap that your research is going to fill. In other words, you’ve got to outline the problem so that your research topic can provide a solution.
  • You need to use the existing research to inform your methodology and approach to your own research design. For example, you might use questions or Likert scales from previous studies in your your own survey design .

As you can see, a good literature review is more than just a summary of the published research. It’s the foundation on which your own research is built, so it deserves a lot of love and attention. Take the time to craft a comprehensive literature review with a suitable structure .

But, how do I actually write the literature review chapter, you ask? We cover that in detail in this video post .

Step 6: Carry out your own research

Once you’ve completed your literature review and have a sound understanding of the existing research, its time to develop your own research (finally!). You’ll design this research specifically so that you can find the answers to your unique research question.

There are two steps here – designing your research strategy and executing on it:

1 – Design your research strategy

The first step is to design your research strategy and craft a methodology chapter . I won’t get into the technicalities of the methodology chapter here, but in simple terms, this chapter is about explaining the “how” of your research. If you recall, the introduction and literature review chapters discussed the “what” and the “why”, so it makes sense that the next point to cover is the “how” –that’s what the methodology chapter is all about.

In this section, you’ll need to make firm decisions about your research design. This includes things like:

  • Your research philosophy (e.g. positivism or interpretivism )
  • Your overall methodology (e.g. qualitative , quantitative or mixed methods)
  • Your data collection strategy (e.g. interviews , focus groups, surveys)
  • Your data analysis strategy (e.g. content analysis , correlation analysis, regression)

If these words have got your head spinning, don’t worry! We’ll explain these in plain language in other posts. It’s not essential that you understand the intricacies of research design (yet!). The key takeaway here is that you’ll need to make decisions about how you’ll design your own research, and you’ll need to describe (and justify) your decisions in your methodology chapter.

2 – Execute: Collect and analyse your data

Once you’ve worked out your research design, you’ll put it into action and start collecting your data. This might mean undertaking interviews, hosting an online survey or any other data collection method. Data collection can take quite a bit of time (especially if you host in-person interviews), so be sure to factor sufficient time into your project plan for this. Oftentimes, things don’t go 100% to plan (for example, you don’t get as many survey responses as you hoped for), so bake a little extra time into your budget here.

Once you’ve collected your data, you’ll need to do some data preparation before you can sink your teeth into the analysis. For example:

  • If you carry out interviews or focus groups, you’ll need to transcribe your audio data to text (i.e. a Word document).
  • If you collect quantitative survey data, you’ll need to clean up your data and get it into the right format for whichever analysis software you use (for example, SPSS, R or STATA).

Once you’ve completed your data prep, you’ll undertake your analysis, using the techniques that you described in your methodology. Depending on what you find in your analysis, you might also do some additional forms of analysis that you hadn’t planned for. For example, you might see something in the data that raises new questions or that requires clarification with further analysis.

The type(s) of analysis that you’ll use depend entirely on the nature of your research and your research questions. For example:

  • If your research if exploratory in nature, you’ll often use qualitative analysis techniques .
  • If your research is confirmatory in nature, you’ll often use quantitative analysis techniques
  • If your research involves a mix of both, you might use a mixed methods approach

Again, if these words have got your head spinning, don’t worry! We’ll explain these concepts and techniques in other posts. The key takeaway is simply that there’s no “one size fits all” for research design and methodology – it all depends on your topic, your research questions and your data. So, don’t be surprised if your study colleagues take a completely different approach to yours.

The research philosophy is at the core of the methodology chapter

Step 7: Present your findings

Once you’ve completed your analysis, it’s time to present your findings (finally!). In a dissertation or thesis, you’ll typically present your findings in two chapters – the results chapter and the discussion chapter .

What’s the difference between the results chapter and the discussion chapter?

While these two chapters are similar, the results chapter generally just presents the processed data neatly and clearly without interpretation, while the discussion chapter explains the story the data are telling  – in other words, it provides your interpretation of the results.

For example, if you were researching the factors that influence consumer trust, you might have used a quantitative approach to identify the relationship between potential factors (e.g. perceived integrity and competence of the organisation) and consumer trust. In this case:

  • Your results chapter would just present the results of the statistical tests. For example, correlation results or differences between groups. In other words, the processed numbers.
  • Your discussion chapter would explain what the numbers mean in relation to your research question(s). For example, Factor 1 has a weak relationship with consumer trust, while Factor 2 has a strong relationship.

Depending on the university and degree, these two chapters (results and discussion) are sometimes merged into one , so be sure to check with your institution what their preference is. Regardless of the chapter structure, this section is about presenting the findings of your research in a clear, easy to understand fashion.

Importantly, your discussion here needs to link back to your research questions (which you outlined in the introduction or literature review chapter). In other words, it needs to answer the key questions you asked (or at least attempt to answer them).

For example, if we look at the sample research topic:

In this case, the discussion section would clearly outline which factors seem to have a noteworthy influence on organisational trust. By doing so, they are answering the overarching question and fulfilling the purpose of the research .

Your discussion here needs to link back to your research questions. It needs to answer the key questions you asked in your introduction.

For more information about the results chapter , check out this post for qualitative studies and this post for quantitative studies .

Step 8: The Final Step Draw a conclusion and discuss the implications

Last but not least, you’ll need to wrap up your research with the conclusion chapter . In this chapter, you’ll bring your research full circle by highlighting the key findings of your study and explaining what the implications of these findings are.

What exactly are key findings? The key findings are those findings which directly relate to your original research questions and overall research objectives (which you discussed in your introduction chapter). The implications, on the other hand, explain what your findings mean for industry, or for research in your area.

Sticking with the consumer trust topic example, the conclusion might look something like this:

Key findings

This study set out to identify which factors influence consumer-based trust in British low-cost online equity brokerage firms. The results suggest that the following factors have a large impact on consumer trust:

While the following factors have a very limited impact on consumer trust:

Notably, within the 25-30 age groups, Factors E had a noticeably larger impact, which may be explained by…

Implications

The findings having noteworthy implications for British low-cost online equity brokers. Specifically:

The large impact of Factors X and Y implies that brokers need to consider….

The limited impact of Factor E implies that brokers need to…

As you can see, the conclusion chapter is basically explaining the “what” (what your study found) and the “so what?” (what the findings mean for the industry or research). This brings the study full circle and closes off the document.

In the final chapter, you’ll bring your research full circle by highlighting the key findings of your study and the implications thereof.

Let’s recap – how to write a dissertation or thesis

You’re still with me? Impressive! I know that this post was a long one, but hopefully you’ve learnt a thing or two about how to write a dissertation or thesis, and are now better equipped to start your own research.

To recap, the 8 steps to writing a quality dissertation (or thesis) are as follows:

  • Understand what a dissertation (or thesis) is – a research project that follows the research process.
  • Find a unique (original) and important research topic
  • Craft a convincing dissertation or thesis research proposal
  • Write a clear, compelling introduction chapter
  • Undertake a thorough review of the existing research and write up a literature review
  • Undertake your own research
  • Present and interpret your findings

Once you’ve wrapped up the core chapters, all that’s typically left is the abstract , reference list and appendices. As always, be sure to check with your university if they have any additional requirements in terms of structure or content.  

how long is a dissertation for phd

Psst... there’s more!

This post was based on one of our popular Research Bootcamps . If you're working on a research project, you'll definitely want to check this out ...

20 Comments

Romia

thankfull >>>this is very useful

Madhu

Thank you, it was really helpful

Elhadi Abdelrahim

unquestionably, this amazing simplified way of teaching. Really , I couldn’t find in the literature words that fully explicit my great thanks to you. However, I could only say thanks a-lot.

Derek Jansen

Great to hear that – thanks for the feedback. Good luck writing your dissertation/thesis.

Writer

This is the most comprehensive explanation of how to write a dissertation. Many thanks for sharing it free of charge.

Sam

Very rich presentation. Thank you

Hailu

Thanks Derek Jansen|GRADCOACH, I find it very useful guide to arrange my activities and proceed to research!

Nunurayi Tambala

Thank you so much for such a marvelous teaching .I am so convinced that am going to write a comprehensive and a distinct masters dissertation

Hussein Huwail

It is an amazing comprehensive explanation

Eva

This was straightforward. Thank you!

Ken

I can say that your explanations are simple and enlightening – understanding what you have done here is easy for me. Could you write more about the different types of research methods specific to the three methodologies: quan, qual and MM. I look forward to interacting with this website more in the future.

Thanks for the feedback and suggestions 🙂

Osasuyi Blessing

Hello, your write ups is quite educative. However, l have challenges in going about my research questions which is below; *Building the enablers of organisational growth through effective governance and purposeful leadership.*

Dung Doh

Very educating.

Ezra Daniel

Just listening to the name of the dissertation makes the student nervous. As writing a top-quality dissertation is a difficult task as it is a lengthy topic, requires a lot of research and understanding and is usually around 10,000 to 15000 words. Sometimes due to studies, unbalanced workload or lack of research and writing skill students look for dissertation submission from professional writers.

Nice Edinam Hoyah

Thank you 💕😊 very much. I was confused but your comprehensive explanation has cleared my doubts of ever presenting a good thesis. Thank you.

Sehauli

thank you so much, that was so useful

Daniel Madsen

Hi. Where is the excel spread sheet ark?

Emmanuel kKoko

could you please help me look at your thesis paper to enable me to do the portion that has to do with the specification

my topic is “the impact of domestic revenue mobilization.

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how long is a dissertation for phd

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What Exactly Is a PhD Thesis? Here’s the Truth You Should Know

Student immersed in research for PhD thesis.

A PhD thesis is a significant piece of academic writing that represents years of research and study. It showcases a student's original contributions to their field of study and is a key requirement for earning a doctoral degree. Understanding what a PhD thesis entails can help students navigate this challenging yet rewarding process.

Key Takeaways

  • A PhD thesis is a major research project that shows your unique contributions to your field.
  • It is different from other academic works because it requires original research and deep analysis.
  • Writing a thesis takes careful planning, drafting, and revisions to ensure quality and clarity.
  • Common challenges include managing time, dealing with writer's block, and responding to feedback from supervisors.
  • The skills gained during the thesis process are valuable for future academic and career opportunities.

Understanding The Definition Of A PhD Thesis

Clarifying the concept.

A PhD thesis is a comprehensive document that presents your original research on a specific topic. It serves as a demonstration of your ability to conduct independent research and contribute new knowledge to your field. Essentially, it is the culmination of your academic journey, showcasing your skills and expertise.

Distinguishing From Other Academic Works

Unlike other academic papers, a PhD thesis is much more extensive and detailed. While essays or reports may summarize existing knowledge, a thesis requires you to engage deeply with your research question and provide substantial evidence to support your findings. This makes it distinct from shorter academic works, which often do not require the same level of original research.

The Role Of Original Research

The heart of a PhD thesis lies in original research . This means that you are expected to explore a topic that has not been thoroughly investigated before. Your findings should add value to the existing body of knowledge. For instance, a thesis might involve a consortium-based approach to the empirical dissertation , ensuring that the integrity of the overall research project is retained. This is crucial for establishing your credibility as a researcher and for making a meaningful contribution to your field.

In summary, a PhD thesis is not just a requirement for graduation; it is a significant academic endeavor that reflects your dedication and capability as a researcher. It is your opportunity to leave a lasting impact in your area of study.

The Purpose Of A PhD Thesis

Student working on a PhD thesis in a study.

Contributing To Knowledge

A PhD thesis is not just a requirement for graduation; it is a significant contribution to your field of study. Your research can fill gaps in existing knowledge and provide new insights that can influence future studies. This is your chance to make a mark in academia and beyond.

Demonstrating Research Skills

Writing a PhD thesis showcases your ability to conduct thorough research. It demonstrates your skills in gathering data, analyzing information, and presenting your findings clearly. This process is essential for your development as a researcher and can be a valuable asset in your future career.

Establishing Academic Credibility

Completing a PhD thesis establishes you as an expert in your chosen field. It signals to others that you have the knowledge and skills necessary to contribute meaningfully to academic discussions. This credibility can open doors for collaboration, teaching opportunities, and even positions in industry.

In summary, your PhD thesis serves multiple purposes: it contributes to knowledge, demonstrates your research skills, and establishes your academic credibility. As you embark on this journey, remember that resources like the [ Thesis Dialogue Blueprint ](https://www.researchrebels.com/products/thesis-dialogue-blueprint) can help you navigate the challenges of thesis writing, ensuring you stay focused and organized throughout the process.

By understanding these purposes, you can approach your thesis with a clear vision and a sense of purpose, making the most of this pivotal academic endeavor.

Key Components Of A PhD Thesis

Literature review.

The literature review is a critical part of your PhD thesis. It surveys existing research related to your topic, helping you identify gaps in knowledge. This section should clearly outline what has been done before and how your work fits into the larger academic conversation. A well-structured literature review not only supports your research but also demonstrates your understanding of the field.

Methodology

In the methodology section, you explain how you conducted your research. This includes the methods you used to collect data and why you chose them. It’s essential to justify your choices to show that your research is valid and reliable. This section should be detailed enough for others to replicate your study.

Data Analysis

Data analysis is where you present the findings of your research. You should clearly explain how you analyzed the data and what the results mean. Use tables or figures to summarize your findings effectively. For example:

Method Used Sample Size Key Findings
Survey 200 75% satisfaction rate
Interviews 50 Common themes found

This structured approach helps readers grasp your results quickly and understand their significance in the context of your research.

The conclusion wraps up your thesis by summarizing your findings and discussing their implications. It’s your chance to reflect on the research process and suggest areas for future study. A strong conclusion reinforces the importance of your work and its contribution to the field.

In summary, these key components—literature review, methodology, and data analysis—are essential for crafting a comprehensive PhD thesis. Each section plays a vital role in presenting your research clearly and effectively, ensuring that your work is recognized and valued in the academic community.

The Process Of Writing A PhD Thesis

Writing a PhD thesis is a significant undertaking that requires careful planning and execution. Understanding the process can make it more manageable. Here are the key stages you should follow:

Planning And Structuring

  • Define Your Research Question : Start by clearly stating what you want to investigate. This will guide your entire project.
  • Create an Outline : Organize your ideas into a structured outline. This will help you see the big picture and ensure that your thesis flows logically.
  • Set a Timeline : Break your work into smaller tasks and set deadlines for each. This will help you manage your time effectively and avoid last-minute stress.

Drafting The Thesis

  • Write Regularly : Aim to write a little every day. This will help you maintain momentum and make the process less overwhelming.
  • Focus on One Section at a Time : Don’t try to write everything at once. Concentrate on completing one section before moving on to the next.
  • Use Resources : Consider tools like the Thesis Action Plan to help you stay organized and focused on your goals.

Revisions And Feedback

  • Seek Feedback Early : Share drafts with your supervisor or peers to get constructive feedback. This can help you identify areas for improvement.
  • Revise Thoroughly : Don’t hesitate to make significant changes based on feedback. Revising is a crucial part of the writing process.
  • Proofread : Before submitting, carefully proofread your thesis to catch any errors or inconsistencies.

By following these steps, you can learn how to write a thesis fast and effectively. Remember, the key is to stay organized and focused throughout the process. With dedication and the right strategies, you can successfully complete your PhD thesis!

Common Challenges In PhD Thesis Writing

Writing a PhD thesis can be a daunting task, and you are not alone in facing these challenges. Here are some common obstacles that many students encounter during the thesis writing process:

Managing Time Effectively

Time management is crucial when writing your thesis. Balancing your thesis work with other responsibilities can be tough. To stay on track, consider creating a schedule that prioritizes your tasks. Here’s a simple approach:

  • Set clear deadlines for each section of your thesis.
  • Break your work into smaller, manageable tasks.
  • Allocate specific times for writing and research.

Overcoming Writer's Block

You may find yourself staring at a blank page, struggling to get your thoughts down. This is known as writer's block . To combat this, try the following strategies:

  • Take short breaks to refresh your mind.
  • Seek inspiration from other sources, like articles or books.
  • Remember, even the best writers face this challenge.

Navigating Supervisor Feedback

Receiving feedback from your supervisor can be both helpful and overwhelming. It’s important to approach this feedback constructively. Here are some tips:

  • Schedule regular meetings with your supervisor to discuss your progress.
  • Keep a record of feedback and address it systematically.
  • Don’t hesitate to ask for clarification if you don’t understand their comments.

By acknowledging these challenges and finding strategies to overcome them, you'll be well on your way to mastering the thesis writing process! For additional support, consider using resources like the [ thesis success essentials ](https://www.researchrebels.com/products/thesis-success-essentials-free-25-templates) which offers 25 free templates designed to alleviate student anxiety and streamline the thesis writing process.

Embrace these challenges as part of your academic journey, and remember that persistence is key!

The Importance Of A Strong Thesis Statement

A strong thesis statement is essential for your academic writing. It serves as the foundation upon which your entire paper is built. Without a clear thesis statement, your arguments may lack direction and coherence. Here’s why a strong thesis statement matters:

Defining The Research Focus

A thesis statement helps you define the main focus of your research. It allows you to articulate what you want to prove or explore. This clarity is crucial for guiding your research and writing process.

Guiding The Research Process

A well-crafted thesis statement acts as a roadmap for your paper. It outlines the main points you will discuss, helping you stay organized and focused. This structure is vital for ensuring that your arguments are coherent and logically presented.

Engaging The Reader

A strong thesis statement captures the reader's attention. It presents a clear and compelling argument that encourages the reader to continue exploring your work. Engaging your audience is crucial for making your research impactful.

Tips For Crafting A Strong Thesis Statement

  • Be Specific : Avoid vague language. Clearly state your main argument.
  • Be Debatable : Your thesis should invite discussion and analysis.
  • Support With Evidence : Ensure that your thesis can be backed up with research and data.

By focusing on these elements, you can create a thesis statement that not only guides your writing but also enhances the overall quality of your research. For more structured guidance, consider using resources like the [ Thesis Action Plan ](https://researchrebels.com/products/thesis-action-plan) which offers step-by-step worksheets to help you navigate your thesis journey effectively.

In summary, a strong thesis statement is the key to a successful academic paper. It provides clarity, direction, and engagement, making it an essential component of your research.

Ethical Considerations In PhD Research

When you embark on your PhD journey, understanding the ethical implications of your research is crucial. Ethical considerations ensure that your work respects the rights and dignity of all participants.

Plagiarism And Academic Integrity

Plagiarism is a serious offense in academia. It involves using someone else's work without proper acknowledgment. To maintain academic integrity , always cite your sources accurately. Here are some key points to remember:

  • Always give credit to original authors.
  • Use plagiarism detection tools to check your work.
  • Familiarize yourself with your institution's policies on academic honesty.

Informed Consent

Informed consent is essential when conducting research involving human participants. You must ensure that participants understand the purpose of your study and any potential risks involved. Here’s a simple checklist:

  • Provide clear information about the study.
  • Obtain written consent from participants.
  • Allow participants to withdraw at any time without penalty.

Data Management

Proper data management is vital for protecting participant privacy. You should:

  • Store data securely to prevent unauthorized access.
  • Anonymize data to protect participant identities.
  • Follow legal regulations regarding data protection.

By prioritizing these ethical considerations, you not only uphold the integrity of your research but also contribute positively to the academic community. Remember, ethical research practices are not just rules; they are fundamental to building trust and credibility in your work.

The Role Of Peer Review In Thesis Development

Peer review is a vital part of your PhD journey. It involves having experts in your field evaluate your work, which can significantly enhance the quality of your thesis. By engaging in peer review, you can identify and correct flaws in your research, making it stronger and more credible.

Receiving Constructive Feedback

Receiving feedback from peers is essential. They can offer fresh perspectives that you might not have considered. Here are some benefits of peer feedback:

  • Identifying weaknesses in your arguments or methodology.
  • Gaining insights that can help refine your thesis.
  • Enhancing the overall clarity and coherence of your work.

Enhancing Research Quality

The peer review process helps ensure that your research meets high academic standards. It acts as a quality control mechanism, allowing you to:

  • Validate your findings through expert evaluation.
  • Improve the rigor of your research methods.
  • Increase recognition for your work, as peer-reviewed research is often viewed as more credible. This can lead to greater recognition for researchers in your field.

In summary, incorporating peer review into your thesis development is not just beneficial; it is essential for producing a high-quality PhD thesis that stands up to scrutiny and contributes meaningfully to your field.

Preparing For The Thesis Defense

Understanding the defense process.

When you prepare for your thesis defense, it’s essential to understand the process. This is your opportunity to present your research and defend your findings before a committee. Being well-prepared can significantly boost your confidence.

Anticipating Questions

You should anticipate the questions your committee might ask. Review your thesis thoroughly and think about potential weaknesses or areas that might need further explanation. Familiarity with your work will help you clarify and argue your points effectively.

Presenting Your Research

Creating a clear and concise presentation is crucial. Your slides should highlight the key points of your research, including your research questions, methodology, findings, and conclusions. Practice your presentation multiple times to ensure you are comfortable with the material and can present it confidently.

Key Steps to Prepare:

  • Create a Presentation: Focus on clarity and conciseness.
  • Practice Delivery: Rehearse in front of friends or family to gain feedback.
  • Utilize University Resources: Seek help from academic support services if needed.

By following these steps, you can approach your thesis defense with confidence and clarity, ensuring that you effectively communicate your research and its significance. Remember, this is not just a test; it’s a chance to showcase your hard work and dedication!

Post-Thesis Opportunities And Career Paths

After completing your PhD, you may wonder what comes next. The journey doesn’t end with your thesis; in fact, it opens up a world of possibilities. Exploring various career paths can lead to fulfilling opportunities.

Transitioning To Academia

Many graduates choose to continue their academic journey. This can include:

  • Postdoctoral positions : These roles allow you to deepen your research experience.
  • Teaching roles : You can share your knowledge with students at universities or colleges.
  • Research positions : Engaging in further research projects can enhance your expertise.

Exploring Industry Roles

If you’re considering a shift to industry, there are numerous options available. Some popular roles include:

  • Scientist/Researcher : Ideal for STEM graduates, this role allows you to apply your research skills in practical settings.
  • Data Analyst : Utilize your analytical skills to interpret data and inform business decisions.
  • Regulatory Affairs Specialist : Ensure compliance with regulations in various industries.

Entrepreneurship

Starting your own venture can be an exciting path. You can leverage your research to create innovative solutions or products. This route allows for creativity and independence.

Networking and Building Connections

Regardless of the path you choose, networking is crucial. Attend industry events, join professional organizations, and connect with peers. Building a strong network can lead to job referrals and mentorship opportunities.

In summary, the completion of your PhD thesis is just the beginning. Whether you pursue academia, industry, or entrepreneurship, there are many paths available. Embrace the opportunities that come your way and continue to grow professionally.

The Future Of PhD Research

Student engaged in PhD research with books and laptop.

Emerging Trends In Research

As you look ahead in your academic journey, it's essential to recognize the emerging trends in PhD research. These trends often reflect the evolving needs of society and advancements in technology. For instance, interdisciplinary research is becoming increasingly popular, allowing scholars to tackle complex problems from multiple perspectives. This approach not only enriches your research but also broadens its impact.

Interdisciplinary Approaches

Interdisciplinary approaches are vital in today’s research landscape. By collaborating with experts from different fields, you can enhance the depth and breadth of your work. This collaboration can lead to innovative solutions and new insights that might not be possible within a single discipline. For example, combining insights from education and technology can lead to groundbreaking findings in effectiveness research for teacher education .

The Impact Of Technology

Technology is reshaping the way research is conducted. From data collection to analysis, tools like IBM SPSS Statistics are essential for modern researchers. Utilizing such tools can streamline your research process and improve the accuracy of your findings. As you prepare for your PhD, consider how you can leverage technology to enhance your research capabilities. Resources like the guide on [ Discovering Statistics Using IBM SPSS Statistics ](https://example.com) can provide valuable insights into effective statistical analysis.

In summary, the future of PhD research is bright, with opportunities for interdisciplinary collaboration and technological advancements. Embrace these changes to make a meaningful contribution to your field.

As we look ahead, the landscape of PhD research is changing rapidly. With new tools and methods, students can tackle their projects more effectively than ever. If you're feeling lost or anxious about your thesis, don't worry! Visit our website to discover how our Thesis Action Plan can guide you through every step of your writing journey . Take control of your academic future today!

In summary, a PhD thesis is a significant piece of work that showcases a student's research and findings. It is not just a long paper; it is a detailed study that contributes new knowledge to a specific field. Writing a thesis requires careful planning, dedication, and a clear understanding of the research topic. It is a journey that helps students develop critical thinking and writing skills, which are valuable in both academic and professional settings. By completing a PhD thesis, students not only earn their degree but also make a meaningful impact in their area of study.

Frequently Asked Questions

What is a phd thesis.

A PhD thesis is a long piece of writing that shows what you have researched and learned about a specific topic during your PhD program.

How is a PhD thesis different from a dissertation?

In many places, the terms 'thesis' and 'dissertation' are used interchangeably, but a dissertation usually refers to the work done for a PhD, while a thesis is often for a master's degree.

What are the main parts of a PhD thesis?

A PhD thesis usually includes an introduction, literature review, methodology, results, discussion, and conclusion.

How long does it take to write a PhD thesis?

Writing a PhD thesis can take several months to a few years, depending on the research topic and the individual's pace.

What is the purpose of a PhD thesis?

The main purpose of a PhD thesis is to contribute new knowledge to a specific field and demonstrate the author's research skills.

Can I publish my PhD thesis?

Yes, many PhD graduates choose to publish their thesis as a book or in academic journals to share their findings with a wider audience.

What is a thesis defense?

A thesis defense is a meeting where the PhD candidate presents their research to a committee and answers questions about their work.

What happens after I submit my PhD thesis?

After submission, your thesis will be reviewed, and you will usually need to defend it before a committee to earn your degree.

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How long does it take to write a dissertation, published by steve tippins on july 11, 2019 july 11, 2019.

Last Updated on: 2nd February 2024, 05:00 am

How long does it take to write a dissertation? The most accurate (and least helpful) answer is, it depends. Since that’s probably not the answer you’re looking for, I’ll use the rest of the article to address the realities of how long it takes to write a dissertation.

How Long Does It Take to Write a Dissertation?

Based on my experience, writing your dissertation should take somewhere between 13-20 months. These are average numbers based upon the scores of doctoral students that I have worked with over the years, and they generally hold true.

I have seen people take less time and more time, but I believe that with concerted effort, the 13-20 month timeframe is reasonable. 

“Based on my experience, writing your dissertation should take somewhere between 13-20 months.”

University Requirements

Once you hit the dissertation stage, some schools require a minimum number of hours in the dissertation area before you can graduate. Many schools require the equivalent of one year of dissertation credits to graduate. 

So, even if you can finish your dissertation in three months, you will still have to pay for nine more months of dissertation credits before you can graduate. However, unless research and writing is your superpower, I wouldn’t worry about having to pay extra tuition.

But this requirement does offer some insight into how long it takes to write a dissertation. Based on this requirement, it’s reasonable to expect that writing your dissertation will take a year of more. This is consistent with my experience.

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However, this timeframe is based on several assumptions. First, I am assuming that you are continually working towards finishing your dissertation. This means that no family emergencies, funding conundrums, or work issues get in the way of completing. Second, there are no major changes in your dissertation committee. Third, you will have access to the data that you need. 

Assuming these assumptions hold true, this article should give you a general idea of how long it might take to write your dissertation.

How Long Does it Take to Write A Dissertation? Stage-By-Stage

Let’s break down each stage of the dissertation writing process and how long it takes. 

Prospectus 

This is the hardest one to judge, as this is where you lay the groundwork for the rest of your dissertation and get buy-in from committee members. Normally this takes from 3-6 months. Not all of this is writing time, though–much of it is spent refining your topic and your approach.

how long is a dissertation for phd

Why does this stage take so long? For many people, starting to express themselves using an academic voice can take time. This can hold up the review process as your committee members ask for writing-related revisions before they even get to evaluating the content. Don’t worry, once you learn the academic language things will start to flow more easily.

One common mistake students make is lack of specificity, both in their writing in general and in their topic focus. 

Proposal (Chapters 1-3)

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Chapter 1 is often an expansion of your Prospectus. However, you’ll be expected to develop your ideas more and have even more specificity on things like your research question and methodology, so don’t underestimate how long this chapter will take.

Chapter 2 can take some time as you will be digging deep into the literature but I think this can be done in 3-4 months. One caution, some people, and committees, like to start with Chapter 2 so that you are immersed in the literature before completing Chapters 1 and 3. Regardless of where you start, 3-4 months is a good estimate.

Chapter 3 requires an in-depth explanation of your methodology. I suggest working closely with your Chair on this one to avoid multiple submissions and revisions. Get clear on your methodology and make sure you and your chair are on the same page before you write, and continue to check in with your chair, if possible, throughout the process.

IRB Approval

While this step can be full of details and require several iterations it seems that allowing 2 months is sufficient. Most schools have an IRB form that must be submitted. To save time you can usually start filling out the form while your committee is reviewing your Proposal.

Collecting Data

This step varies a great deal. If you are using readily available secondary data this can take a week but if you are interviewing hard to get individuals or have trouble finding a sufficient number of people for your sample this can take 4 months or more. I think 1-4 months should be appropriate

Chapters 4 and 5

These two chapters are the easiest to write as in Chapter 4 you are reporting your results and in Chapter 5 you explain what the results mean. I believe that these two chapters can be written in 2 months.

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Defense and Completion

You will need to defend your dissertation and then go through all of the university requirements to finalize the completion of your dissertation. I would allow 2 months for this process.

Variables That Affect How Long It Takes to Write A Dissertation 

When students say something like, “I’m going to finish my dissertation in three months,” they likely aren’t considering all of the variables besides the actual writing. Even if you’re a fast writer, you’ll have to wait on your committee’s comments, 

Timing Issues

Many schools have response times for committee members. This is important when looking at how long it takes to finish a dissertation. For example, it you have two committee members and they each get up to 2 weeks for a review, it can take up to a month to get a document reviewed, each time you submit. So, plan for these periods of time when thinking about how long that it will take you.

Addressing Comments

How long it takes to write your dissertation also depends on your ability to address your committee’s comments thoroughly. It’s not uncommon for a committee member to send a draft back several times, even if their comments were addressed adequately, because they notice new issues each time they read it. Save yourself considerable time by making sure you address their comments fully, thus avoiding unnecessary time waiting to hear the same feedback.

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This is the biggest variable in the dissertation model. How dedicated are you to the process? How much actual time do you have? How many outside interests/requirements do you have? Are you easily distracted? How clean does your workspace need to be? (This may seem like a strange thing to discuss, but many people need to work in a clean space and can get very interested in cleaning if they have to write). Are you in a full-time program or in a part time program? Are you holding down a job? Do you have children? 

All of these things will affect how much time you have to put into writing–or rather, how disciplined you need to be about making time to write.

One of the things that can influence how long it takes to write your dissertation is your committee. Choose your committee wisely. If you work under the assumption that the only good dissertation is a done dissertation, then you want a committee that will be helpful and not trying to prove themselves on your back. When you find a Chair that you can work with ask her/him which of their colleagues they work well with (it’s also worth finding out who they don’t work well with).

Find out how they like to receive material to review. Some members like to see pieces of chapters and some like to see completed documents. Once you know their preferences, you can efficiently submit what they want when they want it.

How Long Does it Take to Write a Dissertation? Summary

Barring unforeseen events, the normal time range for finishing a dissertation seems to be 13-19 months, which can be rounded to one to one and a half years. If you are proactive and efficient, you can usually be at the shorter end of the time range. 

how long is a dissertation for phd

That means using downtime to do things like changing the tense of your approved Proposal from future tense to past tense and completing things like you Abstract and Acknowledgement sections before final approval.

I hope that you can be efficient in this process and finish as quickly as possible. Remember, “the only good dissertation is a done dissertation.”

On that note, I offer coaching services to help students through the dissertation writing process, as well as editing services for those who need help with their writing.

Steve Tippins

Steve Tippins, PhD, has thrived in academia for over thirty years. He continues to love teaching in addition to coaching recent PhD graduates as well as students writing their dissertations. Learn more about his dissertation coaching and career coaching services. Book a Free Consultation with Steve Tippins

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What Is a Dissertation? | 5 Essential Questions to Get Started

Published on 26 March 2020 by Jack Caulfield . Revised on 5 May 2022.

A dissertation is a large research project undertaken at the end of a degree. It involves in-depth consideration of a problem or question chosen by the student. It is usually the largest (and final) piece of written work produced during a degree.

The length and structure of a dissertation vary widely depending on the level and field of study. However, there are some key questions that can help you understand the requirements and get started on your dissertation project.

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Table of contents

When and why do you have to write a dissertation, who will supervise your dissertation, what type of research will you do, how should your dissertation be structured, what formatting and referencing rules do you have to follow, frequently asked questions about dissertations.

A dissertation, sometimes called a thesis, comes at the end of an undergraduate or postgraduate degree. It is a larger project than the other essays you’ve written, requiring a higher word count and a greater depth of research.

You’ll generally work on your dissertation during the final year of your degree, over a longer period than you would take for a standard essay . For example, the dissertation might be your main focus for the last six months of your degree.

Why is the dissertation important?

The dissertation is a test of your capacity for independent research. You are given a lot of autonomy in writing your dissertation: you come up with your own ideas, conduct your own research, and write and structure the text by yourself.

This means that it is an important preparation for your future, whether you continue in academia or not: it teaches you to manage your own time, generate original ideas, and work independently.

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During the planning and writing of your dissertation, you’ll work with a supervisor from your department. The supervisor’s job is to give you feedback and advice throughout the process.

The dissertation supervisor is often assigned by the department, but you might be allowed to indicate preferences or approach potential supervisors. If so, try to pick someone who is familiar with your chosen topic, whom you get along with on a personal level, and whose feedback you’ve found useful in the past.

How will your supervisor help you?

Your supervisor is there to guide you through the dissertation project, but you’re still working independently. They can give feedback on your ideas, but not come up with ideas for you.

You may need to take the initiative to request an initial meeting with your supervisor. Then you can plan out your future meetings and set reasonable deadlines for things like completion of data collection, a structure outline, a first chapter, a first draft, and so on.

Make sure to prepare in advance for your meetings. Formulate your ideas as fully as you can, and determine where exactly you’re having difficulties so you can ask your supervisor for specific advice.

Your approach to your dissertation will vary depending on your field of study. The first thing to consider is whether you will do empirical research , which involves collecting original data, or non-empirical research , which involves analysing sources.

Empirical dissertations (sciences)

An empirical dissertation focuses on collecting and analysing original data. You’ll usually write this type of dissertation if you are studying a subject in the sciences or social sciences.

  • What are airline workers’ attitudes towards the challenges posed for their industry by climate change?
  • How effective is cognitive behavioural therapy in treating depression in young adults?
  • What are the short-term health effects of switching from smoking cigarettes to e-cigarettes?

There are many different empirical research methods you can use to answer these questions – for example, experiments , observations, surveys , and interviews.

When doing empirical research, you need to consider things like the variables you will investigate, the reliability and validity of your measurements, and your sampling method . The aim is to produce robust, reproducible scientific knowledge.

Non-empirical dissertations (arts and humanities)

A non-empirical dissertation works with existing research or other texts, presenting original analysis, critique and argumentation, but no original data. This approach is typical of arts and humanities subjects.

  • What attitudes did commentators in the British press take towards the French Revolution in 1789–1792?
  • How do the themes of gender and inheritance intersect in Shakespeare’s Macbeth ?
  • How did Plato’s Republic and Thomas More’s Utopia influence nineteenth century utopian socialist thought?

The first steps in this type of dissertation are to decide on your topic and begin collecting your primary and secondary sources .

Primary sources are the direct objects of your research. They give you first-hand evidence about your subject. Examples of primary sources include novels, artworks and historical documents.

Secondary sources provide information that informs your analysis. They describe, interpret, or evaluate information from primary sources. For example, you might consider previous analyses of the novel or author you are working on, or theoretical texts that you plan to apply to your primary sources.

Dissertations are divided into chapters and sections. Empirical dissertations usually follow a standard structure, while non-empirical dissertations are more flexible.

Structure of an empirical dissertation

Empirical dissertations generally include these chapters:

  • Introduction : An explanation of your topic and the research question(s) you want to answer.
  • Literature review : A survey and evaluation of previous research on your topic.
  • Methodology : An explanation of how you collected and analysed your data.
  • Results : A brief description of what you found.
  • Discussion : Interpretation of what these results reveal.
  • Conclusion : Answers to your research question(s) and summary of what your findings contribute to knowledge in your field.

Sometimes the order or naming of chapters might be slightly different, but all of the above information must be included in order to produce thorough, valid scientific research.

Other dissertation structures

If your dissertation doesn’t involve data collection, your structure is more flexible. You can think of it like an extended essay – the text should be logically organised in a way that serves your argument:

  • Introduction: An explanation of your topic and the question(s) you want to answer.
  • Main body: The development of your analysis, usually divided into 2–4 chapters.
  • Conclusion: Answers to your research question(s) and summary of what your analysis contributes to knowledge in your field.

The chapters of the main body can be organised around different themes, time periods, or texts. Below you can see some example structures for dissertations in different subjects.

  • Political philosophy

This example, on the topic of the British press’s coverage of the French Revolution, shows how you might structure each chapter around a specific theme.

Example of a dissertation structure in history

This example, on the topic of Plato’s and More’s influences on utopian socialist thought, shows a different approach to dividing the chapters by theme.

Example of a dissertation structure in political philosophy

This example, a master’s dissertation on the topic of how writers respond to persecution, shows how you can also use section headings within each chapter. Each of the three chapters deals with a specific text, while the sections are organised thematically.

Example of a dissertation structure in literature

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Like other academic texts, it’s important that your dissertation follows the formatting guidelines set out by your university. You can lose marks unnecessarily over mistakes, so it’s worth taking the time to get all these elements right.

Formatting guidelines concern things like:

  • line spacing
  • page numbers
  • punctuation
  • title pages
  • presentation of tables and figures

If you’re unsure about the formatting requirements, check with your supervisor or department. You can lose marks unnecessarily over mistakes, so it’s worth taking the time to get all these elements right.

How will you reference your sources?

Referencing means properly listing the sources you cite and refer to in your dissertation, so that the reader can find them. This avoids plagiarism by acknowledging where you’ve used the work of others.

Keep track of everything you read as you prepare your dissertation. The key information to note down for a reference is:

  • The publication date
  • Page numbers for the parts you refer to (especially when using direct quotes)

Different referencing styles each have their own specific rules for how to reference. The most commonly used styles in UK universities are listed below.

&
An author–date citation in brackets in the text… …corresponding to an entry in the alphabetised reference list at the end.
A superscript or bracketed reference number in the text… …corresponding to an entry in the numbered reference list at the end.
A footnote in the text that gives full source information… …and an alphabetised bibliography at the end listing all sources.

You can use the free APA Reference Generator to automatically create and store your references.

APA Reference Generator

The words ‘ dissertation ’ and ‘thesis’ both refer to a large written research project undertaken to complete a degree, but they are used differently depending on the country:

  • In the UK, you write a dissertation at the end of a bachelor’s or master’s degree, and you write a thesis to complete a PhD.
  • In the US, it’s the other way around: you may write a thesis at the end of a bachelor’s or master’s degree, and you write a dissertation to complete a PhD.

The main difference is in terms of scale – a dissertation is usually much longer than the other essays you complete during your degree.

Another key difference is that you are given much more independence when working on a dissertation. You choose your own dissertation topic , and you have to conduct the research and write the dissertation yourself (with some assistance from your supervisor).

Dissertation word counts vary widely across different fields, institutions, and levels of education:

  • An undergraduate dissertation is typically 8,000–15,000 words
  • A master’s dissertation is typically 12,000–50,000 words
  • A PhD thesis is typically book-length: 70,000–100,000 words

However, none of these are strict guidelines – your word count may be lower or higher than the numbers stated here. Always check the guidelines provided by your university to determine how long your own dissertation should be.

At the bachelor’s and master’s levels, the dissertation is usually the main focus of your final year. You might work on it (alongside other classes) for the entirety of the final year, or for the last six months. This includes formulating an idea, doing the research, and writing up.

A PhD thesis takes a longer time, as the thesis is the main focus of the degree. A PhD thesis might be being formulated and worked on for the whole four years of the degree program. The writing process alone can take around 18 months.

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Guide to writing your thesis/dissertation, definition of dissertation and thesis.

The dissertation or thesis is a scholarly treatise that substantiates a specific point of view as a result of original research that is conducted by students during their graduate study. At Cornell, the thesis is a requirement for the receipt of the M.A. and M.S. degrees and some professional master’s degrees. The dissertation is a requirement of the Ph.D. degree.

Formatting Requirement and Standards

The Graduate School sets the minimum format for your thesis or dissertation, while you, your special committee, and your advisor/chair decide upon the content and length. Grammar, punctuation, spelling, and other mechanical issues are your sole responsibility. Generally, the thesis and dissertation should conform to the standards of leading academic journals in your field. The Graduate School does not monitor the thesis or dissertation for mechanics, content, or style.

“Papers Option” Dissertation or Thesis

A “papers option” is available only to students in certain fields, which are listed on the Fields Permitting the Use of Papers Option page , or by approved petition. If you choose the papers option, your dissertation or thesis is organized as a series of relatively independent chapters or papers that you have submitted or will be submitting to journals in the field. You must be the only author or the first author of the papers to be used in the dissertation. The papers-option dissertation or thesis must meet all format and submission requirements, and a singular referencing convention must be used throughout.

ProQuest Electronic Submissions

The dissertation and thesis become permanent records of your original research, and in the case of doctoral research, the Graduate School requires publication of the dissertation and abstract in its original form. All Cornell master’s theses and doctoral dissertations require an electronic submission through ProQuest, which fills orders for paper or digital copies of the thesis and dissertation and makes a digital version available online via their subscription database, ProQuest Dissertations & Theses . For master’s theses, only the abstract is available. ProQuest provides worldwide distribution of your work from the master copy. You retain control over your dissertation and are free to grant publishing rights as you see fit. The formatting requirements contained in this guide meet all ProQuest specifications.

Copies of Dissertation and Thesis

Copies of Ph.D. dissertations and master’s theses are also uploaded in PDF format to the Cornell Library Repository, eCommons . A print copy of each master’s thesis and doctoral dissertation is submitted to Cornell University Library by ProQuest.

PhD Centre

How Long Should Your PhD Dissertation Be?

A PhD dissertation is the essential part of a research-based degree since it reflects the student’s knowledge and experience in the field. However, there are some subtle areas that can be frustrating and misleading for many students PhD students. One of the key aspects of the dissertation is its length. Typically, the standard PhD dissertation is 60,000-80,000 words in length, but there is no one size fits all solution. What is definitely known is that a PhD thesis is significantly larger than an MA dissertation. However, it is important to note that PhD thesis writing is about critical analysis, novelty in research and quality of writing. Hence, the PhD writing should firstly focus on the quality of research rather than quantity. This article aims to find out the recommended length of a dissertation at a PhD level.

student writing phd

1. Different approaches to writing PhD dissertations

Many students are looking for PhD help and high-quality writing services and size of the thesis is one of the most difficult questions to answer. When talking about PhD thesis writing, it is important to emphasise the depth of research and comprehensive analysis of all theories and points. This means that size of a dissertation depends on the specific project requirements. For some dissertations that focus heavily on theoretical considerations, the size is likely to be higher. In this case, there is a lot more past literature to be reviewed and more theories to consider. More empirical works rely on a slightly different approach to thesis writing. In this case, the thesis is expected to be a little bit shorter but more empirical. That is, the key value of the thesis comes from empirical findings rather than theoretical review. Therefore, there are different approaches to writing dissertations thereby affecting length of the thesis. However, the minimum length is about 60,000 words, but the key focus is on the depth of research.

2. Subject area and thesis writing

In addition, the length of a dissertation depends on the subject area. For more research-intensive subject areas, there is more information to include in the dissertation. This naturally leads to higher length of the thesis. For areas with much previous literature attention the word count is likely to be larger because of more massive literature review and more opportunities for research. Some new projects with the lack of the academic focus in the past can be shorter. Thesis writing for a social sciences course implies probably larger project size compared to the thesis for science or medicine. Nevertheless, there is no strict answer to this question on the size of a PhD dissertation. There are different factors that come into play and the subject area is one of them.

3. University rules

Another important factor to consider is the university and its PhD dissertation rules and word limits. PhD thesis writing is similar across universities but there are some notable differences. Some universities allow for more strict word limits such as 75,000-80,000 words. Others set higher word limits of 100,000 words or more. Generally, university or course requirements influence size of a PhD thesis. This means that there is no one answer on the size of the thesis paper. Each university has its own standards for PhD thesis writing, so there are significant variations across universities.

The question on how long the PhD dissertation should be is not new. Moreover, each year there are thousands of students who ask exactly the same question. The simple answer can be – “long enough to properly answer the question”. This means that there is no one size that fits all theses. The length of the paper depends on the subject area and university. In addition, depth of research also affects the thesis writing and length of a PhD thesis. Most of theses range from 70,000 to 100,000 words in size. However, each student should consult with his/her faculty on the project size.

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What is a Dissertation? Everything You Need to Know 

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Your dissertation, the final piece of the puzzle that stands between you and the completion of your doctoral degree . Okay, so that’s not the actual definition of the word “dissertation,” but when you’re writing one, that can feel true at times! Keep reading to learn the academic definition and take a more in depth look at what a dissertation is and how to navigate writing one. So, let’s go!  

Related : Top fully funded PhD programs

Dissertation vs. thesis  

While dissertation and thesis are sometimes used interchangeably, they actually refer to two different pieces of writing. A thesis is traditionally completed at the end of a master’s program . It is based on pre-existing research and showcases your ability to understand the information you have been learning about in your program. 

A dissertation is much longer than a thesis and is completed at the end of a PhD or doctorate program . It is the last thing you need to complete in order to earn your doctorate in your chosen field. It will be about a topic of your choosing that is within your field of study. Instead of using all pre-existing information though, you will conduct a portion of your own research and propose new ideas.

See also : Top scholarships for graduate students   

What do you write about when completing a dissertation?

What you write about will depend on what field of study you are in. A dissertation is designed to be your own. Meaning that what you write about should be a new idea, a new topic, or question that is still unanswered in your field. Something that you will need to collect new data on, potentially interview people for and explore what information is already available.  

Generally, an idea will need to be approved or at least discussed with whoever is overseeing your dissertation before you begin writing. It’s important to put time and effort into choosing a topic that you will be able to find either existing research for and add to, or a topic that you will be able to establish your own methods of data collection for. Again, the goal of your dissertation is to add to your field.   

How long does a dissertation need to be?  

Your dissertation length will vary, but you can generally count on it to be around 2-3 times the length of your thesis. A standard thesis is roughly 80 to 100 pages. So, on the short end you’re looking at a 200 pages dissertation, while the longer end can reach as high as 400 pages.  

How long does it take to write?  

The page count for a dissertation is enough to scare even the best writers away, but take a breath and rest easy knowing that this is not something you complete in just one semester or even two. On the short end you will have a year to write your dissertation, while the longer end can offer as much as two years to complete your dissertation. During this time, you will work with an advisor who can watch over you and help you along the way.  

The parts of a dissertation   

A dissertation is not just one long paper you must write. Thankfully, it is broken down into manageable pieces that you complete over time.  

Choosing a topic  

The first thing you will do is come up with your topic. Again, your topic will need to be approved by whoever is overseeing your dissertation. If they think that it may not be a strong topic, they will let you know. Even if a topic is approved though, you’ll need to do research around that topic first to make sure that it has not already been covered, or if it has that you take into consideration what has been done and add to the topic in a new way.  

Research can mean looking at what already exists, as well as conducting your own research to add to a proposed idea of yours. Your research can take many different forms depending on what field you are in. Research can be costly at times, so be sure to check out what funding opportunities are available for doctoral research. There are even post PhD research grants you should be familiar with if you intend to continue researching.  

Chapter break down  

A dissertation generally consists of five chapters. We’ve written them out below with a brief description of each and what they include.   

Introduction – Just as you would expect, this is where you will introduce your topic and what you plan to discuss  

Literature review – This section will address the research you have found that has already been done, or found has not been done, that pertains to your topic  

Methodology – How you go about collecting information for your dissertation, whether it be conducting your own research or delving deep into what has already been done, will be discussed in the methodology section 

Results – Your results will analyze the information you gathered  in regard to your topic 

Discussion – Finally, your discussion section will assess the meaning of your results and it is also where you will add your own ideas, rooted in research, about what those results mean in a broader context in regard to your field 

There will be more parts of your dissertation that are not included in the chapters, but the bulk of your dissertation will be made up by these five chapters. Things like title pages, references, appendices, and table of contents will also be included.  

Defending your dissertation  

Believe it or not, it’s not enough just to write your dissertation–you also have to defend your dissertation. This is another reason why taking a thorough amount of time to choose your topic is so important. You’ll likely need to propose your initial dissertation idea, but that will be much simpler and shorter. Your final defense will be much lengthier and in depth.  

During your defense, you will present your dissertation to a committee. It’s likely that you’ll be at least somewhat familiar with those on the committee; they are not just randomly picked. They will ask you questions about your research, and you will need to respond to each question. A defense generally takes around two hours. The point of a defense is not to have people try to undermine your work, but for you to exemplify your expertise in your field.  

Failing your dissertation  

Nobody wants to think about failing, but unfortunately, you can fail your dissertation. However, let’s talk about a few things before we just leave it at that. First, if you are afraid of failing your dissertation, this is something that you should speak to your advisor about. They can help you determine if there should be legitimate concerns or if you are getting in your own head.  

Second, even if you do fail your dissertation, you are usually allowed to resubmit one time. This of course is not ideal, but it does give you a little room to breathe. Your goal is to do great from the start, but remember this is not an easy task. You’ll likely have plenty of bumps along the way! 

Again, if you have concerns about failing, address them sooner rather than later and seek help. There are bound to be plenty of people and services around you, as well as additional services that you can pay for which will help review your materials and guide you along.

Key Takeaways

  • Dissertations are completed as the last step of your PhD or doctorate degree 
  • Your dissertation will be related to a topic or question in your field of study that you choose 
  • Dissertations take anywhere from one to two years to complete and can be upwards of three hundred pages long 
  • Your dissertation is designed to showcase your expertise in your field and your addition of new ideas to the field about a particular question or area 

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Biosketch format pages, instructions, and samples.

A biographical sketch (also referred to as biosketch) documents an individual's qualifications and experience for a specific role in a project.  NIH requires submission of a biosketch for each proposed senior/key personnel and other significant contributor on a grant application. Some funding opportunities or programs may also request biosketches for additional personnel (e.g., Participating Faculty Biosketch attachment for institutional training awards).  Applicants and recipients are required to submit biosketches

  • in competing applications for all types of grant programs,
  • in progress reports when new senior/key personnel or other significant contributors are identified, and
  • to support prior approval requests for changes in senior/key personnel status and changes of recipient organization.

NIH staff and peer reviewers utilize the biosketch to ensure that individuals included on the applications are equipped with the skills, knowledge, and resources necessary to carry out the proposed research. NIH biosketches must conform to a specific format. Applicants and recipients can use the provided format pages to prepare their biosketch attachments or can use SciENcv ,  a tool used to develop and automatically format biosketches according to NIH requirements.

Biosketch (Fellowship): Biographical Sketch Format Page - FORMS-H

Biosketch (non-fellowship): biographical sketch format page - forms-h.

  • How to Apply — Application Guide
  • Format Attachments (fonts, margins, page limits, and more)
  • Research Performance Progress Report (RPPR)
  • Create your biosketch here!

Institut for Geovidenskab og Naturforvaltning

  • Ph.d.-forsvar

PhD defense: Feng Long

Feng Long defends her thesis: The Fraxinus excelsior mycobiome Zoom link Supervisors: Professor Lene Rostgaard Nielsen, IGN Professor Erik Dahl Kjær, IGN Associate Professor Chatchai Kosawang, IGN Associate Professor James Doonan, IGN Assessment Committee: Professor Isabella Børja, NIMBIO and NMBU – Norway Associate Professor Rimvydas Vasaitis, SLU - Sweden Lektor Hans Jørgen Lyngs Jørgensen (chair), PLEN Summary (shortened): In recent years, a growing body of evidence has demonstrated the role of fungal symbionts in modulating plant host resistance against abiotic and biotic stress, such as drought tolerance and defense against fungal pathogens. These studies have generated interest in tree-associated fungal communities, also known as the tree mycobiome. The most well-studied tree-fungi relationship is that of mycorrhizal fungi, which enhance tree vigor through nutrient uptake facilitation and pathogen antagonism. Despite the widespread focus on mycorrhizal fungi, some endophytic fungi also have protective roles against a variety of plant pathogens, through, for example, the production of anti-fungal secondary metabolites. However, mycobiome communities must survive in the face of changing environmental conditions. For instance, climatic factors, including drought and high temperature, can alter the fungal species within each community. Climate change can also affect soil properties, such as pH and nutrient availability, which can again modify the mycobiome community structure. Trees can shape the structure of their associated mycobiome, and microbes can be transferred from the mother to the next generation, and trees with different genetic backgrounds may select distinct fungi, even within the same species. In Manuscript I, I hypothesized that mother ash trees disperse different sets of mycobiomes via their seed wings. The rationale behind testing the hypothesis was to better understand the early dispersal of the seed mycobiome of ash trees with different levels of ash dieback susceptibility. In common ash, the function of the samara is to enhance seed dispersal and it is spread together with the seed itself, while most of the seed stalk remains on the mother tree. The seeds were collected from two genotypes of common ash. The endophytic fungal community of seed wing and stalk were profiled and analyzed with ITS1-based amplicon sequencing in this manuscript. Seed wing had a higher richness than seed stalk within genotypes, while neither the diversity between the mycobiomes from the two tissue types nor the two genotypes were significantly different. Furthermore, the mycobiome composition differed between seed wings of the two genotypes, while seed stalks were not significantly different. Therefore, the results suggested that F. excelsior mother trees dispersed different sets of endophytic fungi through their samaras.  Finally, in Manuscript IV, I conducted a greenhouse study to explore the function of forest soils  in ash seedling growth and  drought tolerance in comparison to other soil types. I hypothesized that the forest soil mycobiome could benefit ash seedling growth in comparison to potting and agriculture soil. I further hypothesized that soil type and drought stress can affect the rootassociated fungal community and furthermore that these communities can recover after rewatering. The rationale behind testing the hypothesis was to explore the implications of expected extreme weather conditions, including droughts, on ash seedling vigor. The results showed that soil type and drought stress influenced the photosynthesis of ash seedlings, and the seedlings grown in forest soil had higher stomatal conductance (gs), CO2 assimilation, and transpiration. In contrast, the total CO2 assimilation was lower in forest soil than in the other two soil types under drought conditions. Moreover, soil type affected ash growth in response to drought stress and rewatering. The total plant biomass in forest soil was lower after rewatering, while the root/shoot ratio increased to be higher than in the other two soil types after rewatering. Furthermore, soil type affected leaf C, N, P, K, Mg content and C/N ratio (P < 0.001) in response to drought stress, but not leaf Ca. The mycobiome composition of the root endosphere and rhizosphere was significantly affected by soil types and drought stress, although only the root endosphere mycobiome was significantly influenced by rewatering. The correlation between the root endo- and rhizosphere fungal community and soil properties indicated that soil pH, C, N, and C/N ratio could explain the variations. These findings suggest that ash seedlings modulate the root-associated mycobiome via plant-soil-microbe interaction during drought scenarios. A digital version of the PhD thesis can be obtained from the PhD secretary at [email protected]  before the defence. After the defence the thesis will become available from the Royal Danish Libary at [email protected] .

Tid: 18. okt. 2024, kl. 13.00

Sted: Auditorium Kongelunden, Rolighedsvej 23, 1958 Frederiksberg C

Arrangør: Department of Geosciences and Natural Resource Management

IMAGES

  1. How Long Is a Dissertation?

    how long is a dissertation for phd

  2. How long is a PhD dissertation? [Data by field]

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  3. A Detailed Overview Of How Long Is A Dissertation?

    how long is a dissertation for phd

  4. How Long Is A Dissertation

    how long is a dissertation for phd

  5. How Long Is a Dissertation?

    how long is a dissertation for phd

  6. How long is a Thesis or Dissertation? [the data] PhD, Masters

    how long is a dissertation for phd

VIDEO

  1. Doing Research Episode 4: Research Proposal

  2. Dissertation Vlog

  3. Secrets to Dissertation Success:How to Create a Successful Dissertation or PhD Experience

  4. Is PhD End

  5. July 6, 2024

  6. How to write a dissertation

COMMENTS

  1. PDF Guidelines for The PhD Dissertation

    Most dissertations are 100 to 300 pages in length. All dissertations should be divided into appropriate sections, and long dissertations may need chapters, main divisions, and even subdivisions. Students should keep in mind that GSAS and many departments deplore overlong and wordy dissertations.

  2. How Long Is a PhD Thesis?

    Unfortunately, there's no one size fits all answer to this question. However, from the analysis of over 100 PhD theses, the average thesis length is between 80,000 and 100,000 words. A further analysis of 1000 PhD thesis shows the average number of pages to be 204. In reality, the actual word count for each PhD thesis will depend on the ...

  3. How long is a PhD dissertation? [Data by field]

    A PhD can be anywhere from 50 pages to over 450 pages long. This equates to between about 20,000 words to 100,000 words. Most PhD theses are between 60,000 and 80,000 words long excluding contents, citations and references. A PhD thesis contains different sections including an introduction, methods, results and discussion, conclusions, further ...

  4. Tips for writing a PhD dissertation: FAQs answered

    How long should a PhD thesis be? A PhD thesis (or dissertation) is typically 60,000 to 120,000 words (100 to 300 pages in length) organised into chapters, divisions and subdivisions (with roughly 10,000 words per chapter) - from introduction (with clear aims and objectives) to conclusion.

  5. Writing a Dissertation: A Complete Guide

    How long is a dissertation? There is no universal answer to "how long is a dissertation?" The page length or word count varies depending on the degree, field of study, school, and country. But here are some rough estimates to give you an idea of what to expect: Bachelor's: 10,000-15,000 words (35-50 pages)

  6. How long is a Thesis or Dissertation? [the data] PhD, Masters

    An undergraduate thesis is likely to be about 20 to 50 pages long. A Master's thesis is likely to be between 30 and 100 pages in length and a PhD dissertation is likely to be between 50 and 450 pages long. In the table below I highlight the typical length of an undergraduate, master's, and PhD. Level of study.

  7. How long Should be PhD Dissertation? Stepwise Guide for 2024

    Balancing Depth and Brevity: Crafting a Dissertation Masterpiece. A. Emphasizing the Importance of Balance. B. Strategies for Maintaining Focus and Relevance. C. Encouraging Quality over Quantity. Tips for Managing PhD Dissertation Length: Navigating the Dissertation Writing Process. A. Effective Time Management.

  8. PhD Thesis

    How long is a PhD thesis? The length of a PhD thesis varies from subject to subject, but all are far longer than those for undergraduate or Masters degrees. Your university will usually set an upper limit - typically between 70,000 and 100,000 words, with most dissertations coming in at around 80,000 words.

  9. The 8 Most Asked Questions About Dissertations

    In 2020, doctoral degree holders had median weekly earnings of $1,885 and an unemployment rate of 2.5%—lower than any other group. And yet, the dissertation is often a major barrier to completing a doctorate and realizing its many financial and personal benefits. ... How long is a dissertation?

  10. What Is a Dissertation?

    A dissertation is a long-form piece of academic writing based on original research conducted by you. It is usually submitted as the final step in order to finish a PhD program. Your dissertation is probably the longest piece of writing you've ever completed. It requires solid research, writing, and analysis skills, and it can be intimidating ...

  11. How Long is a Dissertation for a PhD?

    Typically ranges from 50 to 100 pages. Typically completed at the end of a PhD program. Mainly consists of the author's unique research. Average length is 100 to 250 pages. If you want to develop your own concepts or theories, a dissertation can help you accomplish this goal.

  12. How Long Is a Dissertation?

    The truth is, there is no one answer to how long a dissertation is. I can't say 146 pages is what's needed, as you may write to page 146 and stop without fully exploring your topic. 90 pages could adequately address your research question, or you could write 200 pages and still not fully answer what you set out to.

  13. How long is a dissertation?

    How long is a dissertation? Dissertation word counts vary widely across different fields, institutions, and levels of education: An undergraduate dissertation is typically 8,000-15,000 words. A master's dissertation is typically 12,000-50,000 words. A PhD thesis is typically book-length: 70,000-100,000 words.

  14. How to Write a Dissertation: Step-by-Step Guide

    The format and content of a dissertation vary widely depending on the academic discipline. Doctoral candidates work closely with their faculty advisor to complete and defend the dissertation, a process that typically takes 1-3 years. How long is a dissertation? The length of a dissertation varies by field.

  15. How long does it take to write a dissertation?

    A master's dissertation is typically 12,000-50,000 words; A PhD thesis is typically book-length: 70,000-100,000 words; However, none of these are strict guidelines - your word count may be lower or higher than the numbers stated here. Always check the guidelines provided by your university to determine how long your own dissertation ...

  16. How To Write A Dissertation Or Thesis

    How To Write A Dissertation: 8 Steps. Clearly understand what a dissertation (or thesis) is. Find a unique and valuable research topic. Craft a convincing research proposal. Write up a strong introduction chapter. Review the existing literature and compile a literature review.

  17. What Exactly Is a PhD Thesis? Here's the Truth You Should Know

    A PhD thesis is a long piece of writing that shows what you have researched and learned about a specific topic during your PhD program. How is a PhD thesis different from a dissertation? In many places, the terms 'thesis' and 'dissertation' are used interchangeably, but a dissertation usually refers to the work done for a PhD, while a thesis is ...

  18. How Long Does it Take to Write a Dissertation?

    Barring unforeseen events, the normal time range for finishing a dissertation seems to be 13-19 months, which can be rounded to one to one and a half years. If you are proactive and efficient, you can usually be at the shorter end of the time range.

  19. What Is a Dissertation?

    A master's dissertation is typically 12,000-50,000 words; A PhD thesis is typically book-length: 70,000-100,000 words; However, none of these are strict guidelines - your word count may be lower or higher than the numbers stated here. Always check the guidelines provided by your university to determine how long your own dissertation ...

  20. Guide to Writing Your Thesis/Dissertation : Graduate School

    Definition of Dissertation and Thesis. The dissertation or thesis is a scholarly treatise that substantiates a specific point of view as a result of original research that is conducted by students during their graduate study. At Cornell, the thesis is a requirement for the receipt of the M.A. and M.S. degrees and some professional master's ...

  21. How Long Should Your PhD Dissertation Be?

    One of the key aspects of the dissertation is its length. Typically, the standard PhD dissertation is 60,000-80,000 words in length, but there is no one size fits all solution. What is definitely known is that a PhD thesis is significantly larger than an MA dissertation. However, it is important to note that PhD thesis writing is about critical ...

  22. What is a Dissertation? Everything You Need to Know

    A thesis is traditionally completed at the end of a master's program. It is based on pre-existing research and showcases your ability to understand the information you have been learning about in your program. A dissertation is much longer than a thesis and is completed at the end of a PhD or doctorate program. It is the last thing you need ...

  23. The Dissertation

    A typical dissertation runs between 250 and 300 pages, divided into four or five chapters, often with a short conclusion following the final full-scale chapter.There is no set minimum or maximum length, but anything below about 225 pages will likely look insubstantial in comparison to others, while anything over 350 pages may suggest a lack of proportion and control of the topic, and would ...

  24. Biosketch Format Pages, Instructions, and Samples

    A biographical sketch (also referred to as biosketch) documents an individual's qualifications and experience for a specific role in a project.

  25. PhD defense: Feng Long

    A digital version of the PhD thesis can be obtained from the PhD secretary at [email protected] before the defence. After the defence the thesis will become available from the Royal Danish Libary at [email protected].