what is a statement of purpose research paper

Thesis and Purpose Statements

Use the guidelines below to learn the differences between thesis and purpose statements.

In the first stages of writing, thesis or purpose statements are usually rough or ill-formed and are useful primarily as planning tools.

A thesis statement or purpose statement will emerge as you think and write about a topic. The statement can be restricted or clarified and eventually worked into an introduction.

As you revise your paper, try to phrase your thesis or purpose statement in a precise way so that it matches the content and organization of your paper.

Thesis statements

A thesis statement is a sentence that makes an assertion about a topic and predicts how the topic will be developed. It does not simply announce a topic: it says something about the topic.

Good: X has made a significant impact on the teenage population due to its . . . Bad: In this paper, I will discuss X.

A thesis statement makes a promise to the reader about the scope, purpose, and direction of the paper. It summarizes the conclusions that the writer has reached about the topic.

A thesis statement is generally located near the end of the introduction. Sometimes in a long paper, the thesis will be expressed in several sentences or an entire paragraph.

A thesis statement is focused and specific enough to be proven within the boundaries of the paper. Key words (nouns and verbs) should be specific, accurate, and indicative of the range of research, thrust of the argument or analysis, and the organization of supporting information.

Purpose statements

A purpose statement announces the purpose, scope, and direction of the paper. It tells the reader what to expect in a paper and what the specific focus will be.

Common beginnings include:

“This paper examines . . .,” “The aim of this paper is to . . .,” and “The purpose of this essay is to . . .”

A purpose statement makes a promise to the reader about the development of the argument but does not preview the particular conclusions that the writer has drawn.

A purpose statement usually appears toward the end of the introduction. The purpose statement may be expressed in several sentences or even an entire paragraph.

A purpose statement is specific enough to satisfy the requirements of the assignment. Purpose statements are common in research papers in some academic disciplines, while in other disciplines they are considered too blunt or direct. If you are unsure about using a purpose statement, ask your instructor.

This paper will examine the ecological destruction of the Sahel preceding the drought and the causes of this disintegration of the land. The focus will be on the economic, political, and social relationships which brought about the environmental problems in the Sahel.

Sample purpose and thesis statements

The following example combines a purpose statement and a thesis statement (bold).

The goal of this paper is to examine the effects of Chile’s agrarian reform on the lives of rural peasants. The nature of the topic dictates the use of both a chronological and a comparative analysis of peasant lives at various points during the reform period. . . The Chilean reform example provides evidence that land distribution is an essential component of both the improvement of peasant conditions and the development of a democratic society. More extensive and enduring reforms would likely have allowed Chile the opportunity to further expand these horizons.

For more tips about writing thesis statements, take a look at our new handout on Developing a Thesis Statement.

Writing Process and Structure

This is an accordion element with a series of buttons that open and close related content panels.

Getting Started with Your Paper

Interpreting Writing Assignments from Your Courses

Generating Ideas for Your Paper

Creating an Argument

Thesis vs. Purpose Statements

Developing a Thesis Statement

Architecture of Arguments

Working with Sources

Quoting and Paraphrasing Sources

Using Literary Quotations

Citing Sources in Your Paper

Drafting Your Paper

Introductions

Paragraphing

Developing Strategic Transitions

Conclusions

Revising Your Paper

Peer Reviews

Reverse Outlines

Revising an Argumentative Paper

Revision Strategies for Longer Projects

Finishing Your Paper

Twelve Common Errors: An Editing Checklist

How to Proofread your Paper

Writing Collaboratively

Collaborative and Group Writing

9 Examples: How to Write a Purpose Statement

By Status.net Editorial Team on September 30, 2023 — 15 minutes to read

• Key Elements of a Purpose Statement Part 1
• How to Write a Purpose Statement Step-by-Step Part 2
• Identifying Your Goals Part 3
• Defining Your Audience Part 4
• Outlining Your Methods Part 5
• Stating the Expected Outcomes Part 6
• Purpose Statement Example for a Research Paper Part 7
• Purpose Statement Example For Personal Goals Part 8
• Purpose Statement Example For Business Objectives Part 9
• Purpose Statement Example For an Essay Part 10
• Purpose Statement Example For a Proposal Part 11
• Purpose Statement Example For a Report Part 12
• Purpose Statement Example For a Project Part 13
• Purpose Statement Templates Part 14

A purpose statement is a vital component of any project, as it sets the tone for the entire piece of work. It tells the reader what the project is about, why it’s important, and what the writer hopes to achieve.

Part 1 Key Elements of a Purpose Statement

When writing a purpose statement, there are several key elements that you should keep in mind. These elements will help you to create a clear, concise, and effective statement that accurately reflects your goals and objectives.

1. The Problem or Opportunity

The first element of a purpose statement is the problem or opportunity that you are addressing. This should be a clear and specific description of the issue that you are trying to solve or the opportunity that you are pursuing.

2. The Target Audience

The second element is the target audience for your purpose statement. This should be a clear and specific description of the group of people who will benefit from your work.

3. The Solution

The third element is the solution that you are proposing. This should be a clear and specific description of the action that you will take to address the problem or pursue the opportunity.

4. The Benefits

The fourth element is the benefits that your solution will provide. This should be a clear and specific description of the positive outcomes that your work will achieve.

5. The Action Plan

The fifth element is the action plan that you will follow to implement your solution. This should be a clear and specific description of the steps that you will take to achieve your goals.

Part 2 How to Write a Purpose Statement Step-by-Step

Writing a purpose statement is an essential part of any research project. It helps to clarify the purpose of your study and provides direction for your research. Here are some steps to follow when writing a purpose statement:

• Start with a clear research question: The first step in writing a purpose statement is to have a clear research question. This question should be specific and focused on the topic you want to research.
• Identify the scope of your study: Once you have a clear research question, you need to identify the scope of your study. This involves determining what you will and will not include in your research.
• Define your research objectives: Your research objectives should be specific, measurable, achievable, relevant, and time-bound. They should also be aligned with your research question and the scope of your study.
• Determine your research design: Your research design will depend on the nature of your research question and the scope of your study. You may choose to use a qualitative, quantitative, or mixed-methods approach.
• Write your purpose statement: Your purpose statement should be a clear and concise statement that summarizes the purpose of your study. It should include your research question, the scope of your study, your research objectives, and your research design.

Research question: What are the effects of social media on teenage mental health?

Scope of study: This study will focus on teenagers aged 13-18 in the United States.

Research objectives: To determine the prevalence of social media use among teenagers, to identify the types of social media used by teenagers, to explore the relationship between social media use and mental health, and to provide recommendations for parents, educators, and mental health professionals.

Research design: This study will use a mixed-methods approach, including a survey and interviews with teenagers and mental health professionals.

Purpose statement: The purpose of this study is to examine the effects of social media on teenage mental health among teenagers aged 13-18 in the United States. The study will use a mixed-methods approach, including a survey and interviews with teenagers and mental health professionals. The research objectives are to determine the prevalence of social media use among teenagers, to identify the types of social media used by teenagers, to explore the relationship between social media use and mental health, and to provide recommendations for parents, educators, and mental health professionals.

Part 3 Section 1: Identifying Your Goals

Before you start writing your purpose statement, it’s important to identify your goals. To do this, ask yourself the following questions:

• What do I want to achieve?
• What problem do I want to solve?
• What impact do I want to make?

Once you have a clear idea of your goals, you can start crafting your purpose statement. Your purpose statement should be a clear and concise statement that outlines the purpose of your work.

For example, if you’re writing a purpose statement for a business, your statement might look something like this:

“Our purpose is to provide high-quality products and services that improve the lives of our customers and contribute to the growth and success of our company.”

If you’re writing a purpose statement for a non-profit organization, your statement might look something like this:

“Our purpose is to improve the lives of underserved communities by providing access to education, healthcare, and other essential services.”

Remember, your purpose statement should be specific, measurable, and achievable. It should also be aligned with your values and goals, and it should inspire and motivate you to take action.

Part 4 Section 2: Defining Your Audience

Once you have established the purpose of your statement, it’s important to consider who your audience is. The audience for your purpose statement will depend on the context in which it will be used. For example, if you’re writing a purpose statement for a research paper, your audience will likely be your professor or academic peers. If you’re writing a purpose statement for a business proposal, your audience may be potential investors or clients.

Defining your audience is important because it will help you tailor your purpose statement to the specific needs and interests of your readers. You want to make sure that your statement is clear, concise, and relevant to your audience.

To define your audience, consider the following questions:

• Who will be reading your purpose statement?
• What is their level of knowledge or expertise on the topic?
• What are their needs and interests?
• What do they hope to gain from reading your purpose statement?

Once you have a clear understanding of your audience, you can begin to craft your purpose statement with their needs and interests in mind. This will help ensure that your statement is effective in communicating your goals and objectives to your readers.

For example, if you’re writing a purpose statement for a research paper on the effects of climate change on agriculture, your audience may be fellow researchers in the field of environmental science. In this case, you would want to make sure that your purpose statement is written in a way that is clear and concise, using technical language that is familiar to your audience.

Or, if you’re writing a purpose statement for a business proposal to potential investors, your audience may be less familiar with the technical aspects of your project. In this case, you would want to make sure that your purpose statement is written in a way that is easy to understand, using clear and concise language that highlights the benefits of your proposal.

The key to defining your audience is to put yourself in their shoes and consider what they need and want from your purpose statement.

Part 5 Section 3: Outlining Your Methods

After you have identified the purpose of your statement, it is time to outline your methods. This section should describe how you plan to achieve your goal and the steps you will take to get there. Here are a few tips to help you outline your methods effectively:

• Start with a general overview: Begin by providing a brief overview of the methods you plan to use. This will give your readers a sense of what to expect in the following paragraphs.
• Break down your methods: Break your methods down into smaller, more manageable steps. This will make it easier for you to stay organized and for your readers to follow along.
• Use bullet points: Bullet points can help you organize your ideas and make your methods easier to read. Use them to list the steps you will take to achieve your goal.
• Be specific: Make sure you are specific about the methods you plan to use. This will help your readers understand exactly what you are doing and why.
• Provide examples: Use examples to illustrate your methods. This will make it easier for your readers to understand what you are trying to accomplish.

Part 6 Section 4: Stating the Expected Outcomes

After defining the problem and the purpose of your research, it’s time to state the expected outcomes. This is where you describe what you hope to achieve by conducting your research. The expected outcomes should be specific and measurable, so you can determine if you have achieved your goals.

It’s important to be realistic when stating your expected outcomes. Don’t make exaggerated or false claims, and don’t promise something that you can’t deliver. Your expected outcomes should be based on your research question and the purpose of your study.

Here are some examples of expected outcomes:

• To identify the factors that contribute to employee turnover in the company.
• To develop a new marketing strategy that will increase sales by 20% within the next year.
• To evaluate the effectiveness of a new training program for improving customer service.
• To determine the impact of social media on consumer behavior.

When stating your expected outcomes, make sure they align with your research question and purpose statement. This will help you stay focused on your goals and ensure that your research is relevant and meaningful.

In addition to stating your expected outcomes, you should also describe how you will measure them. This could involve collecting data through surveys, interviews, or experiments, or analyzing existing data from sources such as government reports or industry publications.

Part 7 Purpose Statement Example for a Research Paper

If you are writing a research paper, your purpose statement should clearly state the objective of your study. Here is an example of a purpose statement for a research paper:

The purpose of this study is to investigate the effects of social media on the mental health of teenagers in the United States.

This purpose statement clearly states the objective of the study and provides a specific focus for the research.

Part 8 Purpose Statement Example For Personal Goals

When writing a purpose statement for your personal goals, it’s important to clearly define what you want to achieve and why. Here’s a template that can help you get started:

“I want to [goal] so that [reason]. I will achieve this by [action].”

Example: “I want to lose 10 pounds so that I can feel more confident in my body. I will achieve this by going to the gym three times a week and cutting out sugary snacks.”

Remember to be specific and realistic when setting your goals and actions, and to regularly review and adjust your purpose statement as needed.

Part 9 Purpose Statement Example For Business Objectives

If you’re writing a purpose statement for a business objective, this template can help you get started:

[Objective] [Action verb] [Target audience] [Outcome or benefit]

Here’s an example using this template:

Increase online sales by creating a more user-friendly website for millennial shoppers.

This purpose statement is clear and concise. It identifies the objective (increase online sales), the action verb (creating), the target audience (millennial shoppers), and the outcome or benefit (a more user-friendly website).

Part 10 Purpose Statement Example For an Essay

“The purpose of this essay is to examine the causes and consequences of climate change, with a focus on the role of human activities, and to propose solutions that can mitigate its impact on the environment and future generations.”

This purpose statement clearly states the subject of the essay (climate change), what aspects will be explored (causes, consequences, human activities), and the intended outcome (proposing solutions). It provides a clear roadmap for the reader and sets the direction for the essay.

Part 11 Purpose Statement Example For a Proposal

“The purpose of this proposal is to secure funding and support for the establishment of a community garden in [Location], aimed at promoting sustainable urban agriculture, fostering community engagement, and improving local access to fresh, healthy produce.”

Why this purpose statement is effective:

• The subject of the proposal is clear: the establishment of a community garden.
• The specific goals of the project are outlined: promoting sustainable urban agriculture, fostering community engagement, and improving local access to fresh produce.
• The overall objective of the proposal is evident: securing funding and support.

Part 12 Purpose Statement Example For a Report

“The purpose of this report is to analyze current market trends in the electric vehicle (EV) industry, assess consumer preferences and buying behaviors, and provide strategic recommendations to guide [Company Name] in entering this growing market segment.”

• The subject of the report is provided: market trends in the electric vehicle industry.
• The specific goals of the report are analysis of market trends, assessment of consumer preferences, and strategic recommendations.
• The overall objective of the report is clear: providing guidance for the company’s entry into the EV market.

Part 13 Purpose Statement Example For a Project

“The purpose of this project is to design and implement a new employee wellness program that promotes physical and mental wellbeing in the workplace.”

This purpose statement clearly outlines the objective of the project, which is to create a new employee wellness program. The program is designed to promote physical and mental wellbeing in the workplace, which is a key concern for many employers. By implementing this program, the company aims to improve employee health, reduce absenteeism, and increase productivity. The purpose statement is concise and specific, providing a clear direction for the project team to follow. It highlights the importance of the project and its potential benefits for the company and its employees.

Part 14 Purpose Statement Templates

When writing a purpose statement, it can be helpful to use a template to ensure that you cover all the necessary components:

Template 1: To [action] [target audience] in order to [outcome]

This template is a straightforward way to outline your purpose statement. Simply fill in the blanks with the appropriate information:

• The purpose of […] is
• To [action]: What action do you want to take?
• [Target audience]: Who is your target audience?
• In order to [outcome]: What outcome do you hope to achieve?

For example:

• The purpose of our marketing campaign is to increase brand awareness among young adults in urban areas, in order to drive sales and revenue growth.
• The purpose of our employee training program is to improve customer service skills among our frontline staff, in order to enhance customer satisfaction and loyalty.
• The purpose of our new product launch is to expand our market share in the healthcare industry, by offering a unique solution to the needs of elderly patients with chronic conditions.

Template 2: This [project/product] is designed to [action] [target audience] by [method] in order to [outcome].

This template is useful for purpose statements that involve a specific project or product. Fill in the blanks with the appropriate information:

• This [project/product]: What is your project or product?
• Is designed to [action]: What action do you want to take?
• By [method]: What method will you use to achieve your goal?
• This app is designed to provide personalized nutrition advice to athletes by analyzing their training data in order to optimize performance.

Frequently Asked Questions

What are the key elements of a purpose statement.

A purpose statement should clearly communicate the main goal or objective of your writing. It should be concise and specific, providing a clear direction for your work. The key elements of a purpose statement include the topic or subject matter, the intended audience, and the overall goal or objective of your writing.

How can a purpose statement benefit your writing?

A purpose statement can help you stay focused and on track when writing. It can also help you to avoid going off-topic or getting bogged down in unnecessary details. By clearly identifying the main goal or objective of your writing, a purpose statement can help you to stay organized and ensure that your writing is effective and impactful.

What are some common mistakes to avoid when writing a purpose statement?

One common mistake is being too vague or general in your purpose statement. Another mistake is making your purpose statement too long or complex, which can make it difficult to understand. Additionally, it’s important to avoid including unnecessary information or details that are not directly relevant to your main goal or objective.

How can you tailor your purpose statement to your audience?

When writing a purpose statement, it’s important to consider your audience and their needs. You should tailor your purpose statement to your audience by using language and terminology that they will understand. You should also consider their level of knowledge or expertise on the subject matter and adjust your purpose statement accordingly.

What are some effective templates for writing a purpose statement?

There are many effective templates for writing a purpose statement, but one common approach is to use the following structure: “The purpose of this writing is to [insert goal or objective] for [insert audience] regarding [insert topic or subject matter].”

Can you provide examples of successful purpose statements?

• “The purpose of this report is to provide an analysis of the current market trends and make recommendations for future growth strategies for our company.”
• “The purpose of this essay is to explore the impact of social media on modern communication and its implications for society.”
• “The purpose of this proposal is to secure funding for a new community center that will provide educational and recreational opportunities for local residents.”
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How To Write a Statement of Purpose for Graduate School

Congratulations! You’ve chosen a graduate program , read up on tips for applying to grad school , and even written a focused grad school resumé . But if you’re like many students, you’ve left the most daunting part of the application process for last—writing a statement of purpose. The good news is that the task doesn’t have to feel so overwhelming, as long as you break the process down into simple, actionable steps. Below, learn how to write a strong, unique statement of purpose that will impress admissions committees and increase your chances of getting into your dream school.

What is a statement of purpose?

A statement of purpose (SOP), sometimes referred to as a personal statement, is a critical piece of a graduate school application that tells admissions committees who you are, what your academic and professional interests are, and how you’ll add value to the graduate program you’re applying to.

Jared Pierce, former associate director of enrollment services at Northeastern University, says a strong statement of purpose can be the deciding factor in a graduate student’s admission.  

“Your statement of purpose is where you tell your story about who you are and why you deserve to be a part of the [university’s] community. It gives the admissions committee the chance to get to know you and understand how you’ll add value to the classroom,” he says.

How long should a statement of purpose be? “A statement of purpose should be between 500 and 1,000 words,” Pierce says, noting that it should typically not exceed a single page. He advises that students use a traditional font at a readable size (11 or 12 points) and leave enough white space in the margins to make the statement easy to read. Make sure to double-space the statement if the university has requested it, he adds. 

How to write a statement of purpose: a step-by-step guide

Now that you understand how to format a statement of purpose, you can begin drafting your own. Getting started can feel daunting, but Pierce suggests making the process more manageable by breaking down the writing process into four easy steps.

1. Brainstorm your ideas.

First, he says, try to reframe the task at hand and get excited for the opportunity to write your statement of purpose. 

“Throughout the application process, you’re afforded few opportunities to address the committee directly,” he explains. “Here is your chance to truly speak directly to them. Each student arrives at this process with a unique story, including prior jobs, volunteer experience, or undergraduate studies. Think about what makes you you and start outlining.”

When writing your statement of purpose, Pierce suggests asking yourself these key questions:

• Why do I want this degree?
• What are my expectations for this degree?
• What courses or program features excite me the most?
• Where do I want this degree to take me, professionally and personally?
• How will my unique professional and personal experiences add value to the program?

Jot these responses down to get your initial thoughts on paper. This will act as your starting point for creating an outline and writing your first draft.

2. Develop an outline.

Next, you’ll want to take the ideas that you’ve identified during the brainstorming process and plug them into an outline that will guide your writing. 

An effective outline for your statement of purpose might look something like this:

• An attention-grabbing hook
• A brief introduction of yourself and your background as it relates to your motivation behind applying to graduate school 
• Your professional goals as they relate to the program
• Why you’re interested in the specific school and what you can bring to the table
• A brief summary of the information presented in the body that emphasizes your qualifications and compatibility with the school

An outline like the one above will give you a roadmap to follow so that your statement of purpose is well organized and concise. 

3. Write the first draft.

Your statement of purpose should communicate who you are and why you are interested in a particular program, but it also needs to be positioned in a way that differentiates you from other applicants. 

Admissions professionals already have your transcripts, resumé, and test scores; the statement of purpose is your chance to tell your story in your own words.

When you begin drafting content, make sure to:

• Provide insight into what drives you , whether that’s professional advancement, personal growth, or both.
• Demonstrate your interest in the school by addressing the unique features of the program that interest you most. For Northeastern, he says, maybe it’s experiential learning; you’re excited to tackle real-world projects in your desired industry. Or perhaps it’s learning from faculty who are experts in your field of study.
• Be yourself. It helps to keep your audience in mind while writing, but don’t forget to let your personality shine through. It’s important to be authentic when writing your statement to show the admissions committee who you are and why your unique perspective will add value to the program.

4. Edit and refine your work.

Before you submit your statement of purpose:

• Make sure you’ve followed all directions thoroughly , including requirements about margins, spacing, and font size.
• Proofread carefully for grammar, spelling, and punctuation.
• Remember that a statement of purpose should be between 500 and 1,000 words. If you’ve written far more than this, read through your statement again and edit for clarity and conciseness. Less is often more; articulate your main points strongly and get rid of any “clutter.”
• Walk away and come back later with a fresh set of eyes. Sometimes your best ideas come when you’re not sitting and staring at your computer.
• Ask someone you trust to read your statement before you submit it.

Making a lasting impression

Your statement of purpose can leave a lasting impression if done well, Pierce says. It provides you with the opportunity to highlight your unique background and skills so that admissions professionals understand why you’re the ideal candidate for the program that you’re applying to. If nothing else, stay focused on what you uniquely bring to the classroom, the program, and the campus community. If you do that, you’ll excel.

To learn more tricks and tips for submitting an impressive graduate school application, explore our related grad school success articles .

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Editor’s note: This article was originally published in March 2017. It has since been updated for thoroughness and accuracy.

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• Problem Statement

Purpose Statement Overview

Best practices for writing your purpose statement, writing your purpose statement, sample purpose statements.

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Jump to DSE Guide

The purpose statement succinctly explains (on no more than 1 page) the objectives of the research study. These objectives must directly address the problem and help close the stated gap. Expressed as a formula:

Good purpose statements:

• Flow from the problem statement and actually address the proposed problem
• Are concise and clear
• Answer the question ‘Why are you doing this research?’
• Match the methodology (similar to research questions)
• Have a ‘hook’ to get the reader’s attention
• Set the stage by clearly stating, “The purpose of this (qualitative or quantitative) study is to ...

In PhD studies, the purpose usually involves applying a theory to solve the problem. In other words, the purpose tells the reader what the goal of the study is, and what your study will accomplish, through which theoretical lens. The purpose statement also includes brief information about direction, scope, and where the data will come from.

A problem and gap in combination can lead to different research objectives, and hence, different purpose statements. In the example from above where the problem was severe underrepresentation of female CEOs in Fortune 500 companies and the identified gap related to lack of research of male-dominated boards; one purpose might be to explore implicit biases in male-dominated boards through the lens of feminist theory. Another purpose may be to determine how board members rated female and male candidates on scales of competency, professionalism, and experience to predict which candidate will be selected for the CEO position. The first purpose may involve a qualitative ethnographic study in which the researcher observes board meetings and hiring interviews; the second may involve a quantitative regression analysis. The outcomes will be very different, so it’s important that you find out exactly how you want to address a problem and help close a gap!

The purpose of the study must not only align with the problem and address a gap; it must also align with the chosen research method. In fact, the DP/DM template requires you to name the  research method at the very beginning of the purpose statement. The research verb must match the chosen method. In general, quantitative studies involve “closed-ended” research verbs such as determine , measure , correlate , explain , compare , validate , identify , or examine ; whereas qualitative studies involve “open-ended” research verbs such as explore , understand , narrate , articulate [meanings], discover , or develop .

A qualitative purpose statement following the color-coded problem statement (assumed here to be low well-being among financial sector employees) + gap (lack of research on followers of mid-level managers), might start like this:

In response to declining levels of employee well-being, the purpose of the qualitative phenomenology was to explore and understand the lived experiences related to the well-being of the followers of novice mid-level managers in the financial services industry. The levels of follower well-being have been shown to correlate to employee morale, turnover intention, and customer orientation (Eren et al., 2013). A combined framework of Leader-Member Exchange (LMX) Theory and the employee well-being concept informed the research questions and supported the inquiry, analysis, and interpretation of the experiences of followers of novice managers in the financial services industry.

A quantitative purpose statement for the same problem and gap might start like this:

In response to declining levels of employee well-being, the purpose of the quantitative correlational study was to determine which leadership factors predict employee well-being of the followers of novice mid-level managers in the financial services industry. Leadership factors were measured by the Leader-Member Exchange (LMX) assessment framework  by Mantlekow (2015), and employee well-being was conceptualized as a compound variable consisting of self-reported turnover-intent and psychological test scores from the Mental Health Survey (MHS) developed by Johns Hopkins University researchers.

Both of these purpose statements reflect viable research strategies and both align with the problem and gap so it’s up to the researcher to design a study in a manner that reflects personal preferences and desired study outcomes. Note that the quantitative research purpose incorporates operationalized concepts  or variables ; that reflect the way the researcher intends to measure the key concepts under study; whereas the qualitative purpose statement isn’t about translating the concepts under study as variables but instead aim to explore and understand the core research phenomenon.  

Always keep in mind that the dissertation process is iterative, and your writing, over time, will be refined as clarity is gradually achieved. Most of the time, greater clarity for the purpose statement and other components of the Dissertation is the result of a growing understanding of the literature in the field. As you increasingly master the literature you will also increasingly clarify the purpose of your study.

The purpose statement should flow directly from the problem statement. There should be clear and obvious alignment between the two and that alignment will get tighter and more pronounced as your work progresses.

The purpose statement should specifically address the reason for conducting the study, with emphasis on the word specifically. There should not be any doubt in your readers’ minds as to the purpose of your study. To achieve this level of clarity you will need to also insure there is no doubt in your mind as to the purpose of your study.

Many researchers benefit from stopping your work during the research process when insight strikes you and write about it while it is still fresh in your mind. This can help you clarify all aspects of a dissertation, including clarifying its purpose.

Your Chair and your committee members can help you to clarify your study’s purpose so carefully attend to any feedback they offer.

The purpose statement should reflect the research questions and vice versa. The chain of alignment that began with the research problem description and continues on to the research purpose, research questions, and methodology must be respected at all times during dissertation development. You are to succinctly describe the overarching goal of the study that reflects the research questions. Each research question narrows and focuses the purpose statement. Conversely, the purpose statement encompasses all of the research questions.

Identify in the purpose statement the research method as quantitative, qualitative or mixed (i.e., “The purpose of this [qualitative/quantitative/mixed] study is to ...)

Avoid the use of the phrase “research study” since the two words together are redundant.

Follow the initial declaration of purpose with a brief overview of how, with what instruments/data, with whom and where (as applicable) the study will be conducted. Identify variables/constructs and/or phenomenon/concept/idea. Since this section is to be a concise paragraph, emphasis must be placed on the word brief. However, adding these details will give your readers a very clear picture of the purpose of your research.

Developing the purpose section of your dissertation is usually not achieved in a single flash of insight. The process involves a great deal of reading to find out what other scholars have done to address the research topic and problem you have identified. The purpose section of your dissertation could well be the most important paragraph you write during your academic career, and every word should be carefully selected. Think of it as the DNA of your dissertation. Everything else you write should emerge directly and clearly from your purpose statement. In turn, your purpose statement should emerge directly and clearly from your research problem description. It is good practice to print out your problem statement and purpose statement and keep them in front of you as you work on each part of your dissertation in order to insure alignment.

It is helpful to collect several dissertations similar to the one you envision creating. Extract the problem descriptions and purpose statements of other dissertation authors and compare them in order to sharpen your thinking about your own work.  Comparing how other dissertation authors have handled the many challenges you are facing can be an invaluable exercise. Keep in mind that individual universities use their own tailored protocols for presenting key components of the dissertation so your review of these purpose statements should focus on content rather than form.

Once your purpose statement is set it must be consistently presented throughout the dissertation. This may require some recursive editing because the way you articulate your purpose may evolve as you work on various aspects of your dissertation. Whenever you make an adjustment to your purpose statement you should carefully follow up on the editing and conceptual ramifications throughout the entire document.

In establishing your purpose you should NOT advocate for a particular outcome. Research should be done to answer questions not prove a point. As a researcher, you are to inquire with an open mind, and even when you come to the work with clear assumptions, your job is to prove the validity of the conclusions reached. For example, you would not say the purpose of your research project is to demonstrate that there is a relationship between two variables. Such a statement presupposes you know the answer before your research is conducted and promotes or supports (advocates on behalf of) a particular outcome. A more appropriate purpose statement would be to examine or explore the relationship between two variables.

Your purpose statement should not imply that you are going to prove something. You may be surprised to learn that we cannot prove anything in scholarly research for two reasons. First, in quantitative analyses, statistical tests calculate the probability that something is true rather than establishing it as true. Second, in qualitative research, the study can only purport to describe what is occurring from the perspective of the participants. Whether or not the phenomenon they are describing is true in a larger context is not knowable. We cannot observe the phenomenon in all settings and in all circumstances.

It is important to distinguish in your mind the differences between the Problem Statement and Purpose Statement.

The Problem Statement is why I am doing the research

The Purpose Statement is what type of research I am doing to fit or address the problem

The Purpose Statement includes:

• Method of Study
• Specific Population

Remember, as you are contemplating what to include in your purpose statement and then when you are writing it, the purpose statement is a concise paragraph that describes the intent of the study, and it should flow directly from the problem statement.  It should specifically address the reason for conducting the study, and reflect the research questions.  Further, it should identify the research method as qualitative, quantitative, or mixed.  Then provide a brief overview of how the study will be conducted, with what instruments/data collection methods, and with whom (subjects) and where (as applicable). Finally, you should identify variables/constructs and/or phenomenon/concept/idea.

Qualitative Purpose Statement

Creswell (2002) suggested for writing purpose statements in qualitative research include using deliberate phrasing to alert the reader to the purpose statement. Verbs that indicate what will take place in the research and the use of non-directional language that do not suggest an outcome are key. A purpose statement should focus on a single idea or concept, with a broad definition of the idea or concept. How the concept was investigated should also be included, as well as participants in the study and locations for the research to give the reader a sense of with whom and where the study took place. 

Creswell (2003) advised the following script for purpose statements in qualitative research:

“The purpose of this qualitative_________________ (strategy of inquiry, such as ethnography, case study, or other type) study is (was? will be?) to ________________ (understand? describe? develop? discover?) the _________________(central phenomenon being studied) for ______________ (the participants, such as the individual, groups, organization) at __________(research site). At this stage in the research, the __________ (central phenomenon being studied) will be generally defined as ___________________ (provide a general definition)” (pg. 90).

Quantitative Purpose Statement

Creswell (2003) offers vast differences between the purpose statements written for qualitative research and those written for quantitative research, particularly with respect to language and the inclusion of variables. The comparison of variables is often a focus of quantitative research, with the variables distinguishable by either the temporal order or how they are measured. As with qualitative research purpose statements, Creswell (2003) recommends the use of deliberate language to alert the reader to the purpose of the study, but quantitative purpose statements also include the theory or conceptual framework guiding the study and the variables that are being studied and how they are related. 

Creswell (2003) suggests the following script for drafting purpose statements in quantitative research:

“The purpose of this _____________________ (experiment? survey?) study is (was? will be?) to test the theory of _________________that _________________ (compares? relates?) the ___________(independent variable) to _________________________(dependent variable), controlling for _______________________ (control variables) for ___________________ (participants) at _________________________ (the research site). The independent variable(s) _____________________ will be generally defined as _______________________ (provide a general definition). The dependent variable(s) will be generally defined as _____________________ (provide a general definition), and the control and intervening variables(s), _________________ (identify the control and intervening variables) will be statistically controlled in this study” (pg. 97).

• The purpose of this qualitative study was to determine how participation in service-learning in an alternative school impacted students academically, civically, and personally.  There is ample evidence demonstrating the failure of schools for students at-risk; however, there is still a need to demonstrate why these students are successful in non-traditional educational programs like the service-learning model used at TDS.  This study was unique in that it examined one alternative school’s approach to service-learning in a setting where students not only serve, but faculty serve as volunteer teachers.  The use of a constructivist approach in service-learning in an alternative school setting was examined in an effort to determine whether service-learning participation contributes positively to academic, personal, and civic gain for students, and to examine student and teacher views regarding the overall outcomes of service-learning.  This study was completed using an ethnographic approach that included observations, content analysis, and interviews with teachers at The David School.
• The purpose of this quantitative non-experimental cross-sectional linear multiple regression design was to investigate the relationship among early childhood teachers’ self-reported assessment of multicultural awareness as measured by responses from the Teacher Multicultural Attitude Survey (TMAS) and supervisors’ observed assessment of teachers’ multicultural competency skills as measured by the Multicultural Teaching Competency Scale (MTCS) survey. Demographic data such as number of multicultural training hours, years teaching in Dubai, curriculum program at current school, and age were also examined and their relationship to multicultural teaching competency. The study took place in the emirate of Dubai where there were 14,333 expatriate teachers employed in private schools (KHDA, 2013b).
• The purpose of this quantitative, non-experimental study is to examine the degree to which stages of change, gender, acculturation level and trauma types predicts the reluctance of Arab refugees, aged 18 and over, in the Dearborn, MI area, to seek professional help for their mental health needs. This study will utilize four instruments to measure these variables: University of Rhode Island Change Assessment (URICA: DiClemente & Hughes, 1990); Cumulative Trauma Scale (Kira, 2012); Acculturation Rating Scale for Arabic Americans-II Arabic and English (ARSAA-IIA, ARSAA-IIE: Jadalla & Lee, 2013), and a demographic survey. This study will examine 1) the relationship between stages of change, gender, acculturation levels, and trauma types and Arab refugees’ help-seeking behavior, 2) the degree to which any of these variables can predict Arab refugee help-seeking behavior.  Additionally, the outcome of this study could provide researchers and clinicians with a stage-based model, TTM, for measuring Arab refugees’ help-seeking behavior and lay a foundation for how TTM can help target the clinical needs of Arab refugees. Lastly, this attempt to apply the TTM model to Arab refugees’ condition could lay the foundation for future research to investigate the application of TTM to clinical work among refugee populations.
• The purpose of this qualitative, phenomenological study is to describe the lived experiences of LLM for 10 EFL learners in rural Guatemala and to utilize that data to determine how it conforms to, or possibly challenges, current theoretical conceptions of LLM. In accordance with Morse’s (1994) suggestion that a phenomenological study should utilize at least six participants, this study utilized semi-structured interviews with 10 EFL learners to explore why and how they have experienced the motivation to learn English throughout their lives. The methodology of horizontalization was used to break the interview protocols into individual units of meaning before analyzing these units to extract the overarching themes (Moustakas, 1994). These themes were then interpreted into a detailed description of LLM as experienced by EFL students in this context. Finally, the resulting description was analyzed to discover how these learners’ lived experiences with LLM conformed with and/or diverged from current theories of LLM.
• The purpose of this qualitative, embedded, multiple case study was to examine how both parent-child attachment relationships are impacted by the quality of the paternal and maternal caregiver-child interactions that occur throughout a maternal deployment, within the context of dual-military couples. In order to examine this phenomenon, an embedded, multiple case study was conducted, utilizing an attachment systems metatheory perspective. The study included four dual-military couples who experienced a maternal deployment to Operation Iraqi Freedom (OIF) or Operation Enduring Freedom (OEF) when they had at least one child between 8 weeks-old to 5 years-old.  Each member of the couple participated in an individual, semi-structured interview with the researcher and completed the Parenting Relationship Questionnaire (PRQ). “The PRQ is designed to capture a parent’s perspective on the parent-child relationship” (Pearson, 2012, para. 1) and was used within the proposed study for this purpose. The PRQ was utilized to triangulate the data (Bekhet & Zauszniewski, 2012) as well as to provide some additional information on the parents’ perspective of the quality of the parent-child attachment relationship in regards to communication, discipline, parenting confidence, relationship satisfaction, and time spent together (Pearson, 2012). The researcher utilized the semi-structured interview to collect information regarding the parents' perspectives of the quality of their parental caregiver behaviors during the deployment cycle, the mother's parent-child interactions while deployed, the behavior of the child or children at time of reunification, and the strategies or behaviors the parents believe may have contributed to their child's behavior at the time of reunification. The results of this study may be utilized by the military, and by civilian providers, to develop proactive and preventive measures that both providers and parents can implement, to address any potential adverse effects on the parent-child attachment relationship, identified through the proposed study. The results of this study may also be utilized to further refine and understand the integration of attachment theory and systems theory, in both clinical and research settings, within the field of marriage and family therapy.

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