AD Center Site Banner

  • Section 1: Home
  • Narrowing Your Topic
  • Problem Statement

Purpose Statement Overview

Writing an effective purpose statement, best practices for writing your purpose statement, sample purpose statements.

  • Conceptual Framework
  • Avoiding Common Mistakes
  • Synthesis and Analysis in Writing Support This link opens in a new window
  • Qualitative Research Questions This link opens in a new window
  • Quantitative Research Questions This link opens in a new window
  • Qualitative & Quantitative Research Support with the ASC This link opens in a new window
  • Library Research Consultations This link opens in a new window
  • Library Guide: Research Process This link opens in a new window
  • ASC Guide: Outlining and Annotating This link opens in a new window
  • Library Guide: Organizing Research & Citations This link opens in a new window
  • Library Guide: RefWorks This link opens in a new window
  • Library Guide: Copyright Information This link opens in a new window

Purpose Statement 

The purpose statement succinctly explains the objectives of the doctoral project or dissertation-in-practice. These objectives must directly address the problem. The purpose statement also identifies the project methodology and design.

A problem and a missing piece in combination can lead to different objectives, and hence, different purpose statements. 

The purpose of the applied doctoral project or dissertation-in-practice must not only align with the problem and address a missing piece; it must also align with the chosen project method. In fact, the template requires you to name the research method at the very beginning of the purpose statement. 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.  

Qualitative Purpose Statement

A qualitative purpose statement following the color-coded problem statement (assumed here to be low well-being among financial sector employees) + missing piece (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 findings to be applied in the financial services industry.   

Quantitative Purpose Statement

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 to be applied 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 practitioner to design a doctoral project or dissertation-in-practice 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 practitioner 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.

An important step in the successful completion of an Applied Doctoral Project/Dissertation in Practice is starting off with an accurate and precise purpose statement.  Read through the information below to get some general ideas or guidelines related to effective purpose statements and how to compose them.  All this information comes from faculty who want you to succeed in the process.

General Guidelines

Keep these in mind as you begin to compose your purpose statement

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 project?’
  • Match the methodology to your  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 ...”

Writing your Purpose Statement:

  • The Problem Statement is why I am doing the project or dissertation-in-practice
  • The Purpose Statement is what type of project or study I am doing to fit or address the problem

The Purpose Statement includes:

  • Design and Method of Study
  • Specific Population

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

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

“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 __________(site). At this stage in the project, 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 methodology and those written for quantitative methodology, particularly with respect to language and the inclusion of variables. The comparison of variables is often a focus of quantitative methodology with the variables distinguishable by either the temporal order or how they are measured. As with qualitative purpose statements, Creswell (2003) recommends the use of deliberate language to alert the reader to the purpose of the project or study, though quantitative purpose statements also include the theory or conceptual framework guiding the project or study, the variables that are being studied, and how those variables are related.  

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

“The purpose of this _____________________ (experiment? survey?) project 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 _________________________ (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 project” (pg. 97).

Creswell, J. (2002). Educational research: Planning, conducting, and evaluating quantitative and qualitative research.  Merrill Prentice Hall. 7.  Creswell, J. (2003). Research design: Qualitative, quantitative and mixed methods approaches (2nd ed.).  SAGE Publications.

Always keep in mind that the 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 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 project or 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 project or study, with emphasis on the word specifically. There should not be any doubt in your readers’ minds as to the purpose of your project or study. To achieve this level of clarity, you will need to also ensure there is no doubt in your mind as to the purpose of your project or study. 

You may benefit from stopping your work during the process when insight strikes you in order to write about that insight while it is still fresh in your mind. This pause can help you clarify all aspects of the project or study, including clarifying its purpose. 

Your Chair and your committee members can help you to clarify the purpose of your project or dissertation-in-practice, so carefully attend to any feedback they offer.

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

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

Follow the initial declaration of purpose with a brief overview of how the project or study will be conducted, including instruments, data, with whom (sample), and where (as applicable). 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 project or dissertation-in-practice.

Developing the purpose section is usually not achieved in a single flash of insight. The process involves a great deal of reading to find out what other practitioners have done to address the problem you have identified. The purpose section 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 project or study. 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 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 project or dissertation-in-practice in order to ensure alignment.

It is helpful to collect several project or dissertation-in-practice reports or literature similar to the one you envision creating. Extract the problem descriptions and purpose statements of other authors and compare them in order to sharpen your thinking about your own work.  Comparing how other 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, 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 project or dissertation-in-practice. This consistency may require some recursive editing because the way you articulate your purpose may evolve as you work on various aspects of your project or dissertation-in-practice. 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. Your review of the literature should be done to answer questions, not to prove a point. As a scholar-practitioner, you are to inquire with an open mind, and even when you come to the work with clear assumptions, your job is to support the validity of the conclusions reached. For example, you would not say the purpose of your project or study is to demonstrate that there is a relationship between two variables. Such a statement presupposes you know the answer before your review of the literature 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 review of the literature 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 methodology, 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. 

Here are some example purpose statements for your consideration.

Purpose Statement 1

The purpose of this qualitative project 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.

Purpose Statement 2

The purpose of this quantitative, non-experimental, cross-sectional linear, multiple regression design study 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). 

Purpose Statement 3

The purpose of this quantitative, non-experimental project 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.

Purpose Statement 4

The purpose of this qualitative, phenomenological project 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.

Purpose Statement 5

The purpose of this qualitative, embedded, multiple case project 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 project 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 project 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. 

Compiled by Dr. Darren Adamson, Department Chair, School of Social and Behavioral Sciences 

  • << Previous: Problem Statement
  • Next: Alignment >>
  • Last Updated: Oct 30, 2024 5:45 PM
  • URL: https://resources.nu.edu/c.php?g=1013602

National University

© Copyright 2024 National University. All Rights Reserved.

Privacy Policy | Consumer Information

  • QUICK LINKS
  • How to enroll
  • Career services
  • Go to MyPhoenix
  • Return to my application
  • My saved programs

Dissertation 101: Tips for researching and writing a doctoral dissertation

A student writes a doctoral dissertation

By Elizabeth Exline

When Rose Lorenzo got close to finishing her  master’s degree  at University of Phoenix (UOPX), she came to a crossroads. She could walk away with her degree and focus on building her company,  Lorenzo Financial , or she could scratch the itch for more academic knowledge and pursue her doctorate.

Lorenzo chose the latter. (And  still  managed to build her company, lay the groundwork to  launch a new school  and eventually get accepted to law school.)

Rose Lorenzo

“Although I knew what I wanted to study, I wish I had known how to choose the right topic and how to narrow that topic down before I started,” Lorenzo recalls.

Lorenzo, of course, is talking about the  dissertation , that book-length document that’s both the capstone of the doctoral degree and the driving force behind a doctoral program’s years of study and academic research.

But settling on a topic is just one part of a process that can intimidate even the most determined scholar. What’s exactly involved in a dissertation? And what’s the point of one anyway? Here, we take a deeper dive into the dissertation experience.

What is a dissertation?

A dissertation is an academic document prepared by a doctoral student that contains  original research  about a topic. The student identifies the  topic, conducts the research, writes the dissertation and defends it in front of a committee led by a dissertation chair and other doctoral faculty who decide whether the research meets the doctoral level research standards. If it does, the student will successfully complete the doctoral program, have their dissertation published in ProQuest and earn a terminal degree , which means the highest education level that can be earned in a field.

The dissertation, in other words, is important. But why all the fuss in the first place? According to Rodney Luster, PhD, a dissertation can enhance society’s overall  knowledge and understanding about an issue and ignite a person’s area of interest and expertise, as well as enhance that expertise .

Rodney Luster, PhD

Luster is the chair for the Center for Leadership Studies and Organizational Research within the College of Doctoral Studies at University of Phoenix , and he points to his own dissertation by way of example. 

His research concerned what is currently known as vicarious trauma, a phenomenon he witnessed among his college students after the 9/11 attacks. His students hadn’t been anywhere near the attack, and yet he noticed they displayed classic signs of trauma. This piqued his interest.

“I was able to conduct what I understand was the first research study looking at  vicarious trauma  in the general population, and that has opened up a lot of doors,” Luster explains.

Now an expert on the concept, he has seen the phenomenon after subsequent events, such as Hurricane Katrina.

Lorenzo’s research was more tailored to her area of interest. She ultimately whittled down her topic from how leadership impacts entrepreneurial success or failure to how it impacts female entrepreneurs specifically.

Ready to start your degree? Explore our doctoral offerings.

Topics, in other words, offer the freedom for students to follow their curiosity and experience with the goal of potentially  solving a problem  or  adding to a field’s body of knowledge .

read similar articles

University of Phoenix doctorate graduates

Practitioner doctorate vs. PhD – 5 things to know before getting started

Dissertation vs. thesis — what's the difference.

Some people may confuse a dissertation with a thesis, but they’re not the same thing. While similar in nature in that they are both the capstone of an academic program, the biggest difference is where a dissertation and a thesis fit in the educational journey. As explained, a doctoral student completes a dissertation, while a thesis is a research paper for a master’s-level student or sometimes within a bachelor’s program. 

There are other differences as well. One is the level of research involved. Often, a thesis is based on existing research. This means that an undergrad or graduate student will compile various research findings to defend a theory or idea in a thesis. A dissertation on the other hand requires doctoral students to conduct, present and defend their own research.

The two documents differ in length too. A thesis is often much shorter and can range from 40 to 60 pages for an undergraduate thesis and from 60 to upward of 100 pages for a master's thesis. A dissertation is 150 to 300 pages, or 80,000 to 100,000 words. As noted, whether it’s presented in front of a panel of faculty or academics as an oral defense is another key difference. This is often required for a dissertation, but oral defense of a thesis may depend on the program or institution.

doctoral dissertation purpose

How to write a dissertation

Figuring out a dissertation topic is a process as individualized as the students in a doctoral degree program. Luster usually encourages candidates to  begin with a title .

“That’s going to be your selling point for everything, and it has to be understandable. It must be concise. It must have a theoretical construct in it. The title will take you a lot of places and will help lead you into the writing process.”

To this Lorenzo adds a less lofty but equally valid cross-check: She learned to really drill down any topic with the question, “ Who cares? ” If there are people who are invested in learning more about the topic (if there are, in other words, people who care), it may warrant further research.

These preliminary exercises lay a solid foundation for the dissertation process, but the actual research and writing can still feel intimidating. Luster, for example, had written a book before starting his dissertation, and points out that a dissertation “is not like any other writing that you’ve done.”

So, where do you start? At UOPX, you start in your first class.

Understanding ACCESS

The dissertation process at UOPX was revamped and rolled out in September 2019, notes Shawn C. Todd-Boone, EdD, the associate dean for ACCESS, research and residency at the College of Doctoral Studies.

Rodney Luster, PhD

Luster says the process was reimagined based on extensive feedback and on a desire to make the process more effective and efficient.

One of the first ways the dissertation process changed was with the development of  ACCESS , an acronym for “ advancing community, critical thought, engagement, scholarship and success .”

This sequence is incorporated into the first three interdisciplinary courses of any doctoral program at UOPX with an eye toward introducing doctoral candidates to what Luster calls a “theoretical mindset.”

The ACCESS program attempts to nurture a culture of inquiry that helps retain doctoral candidates while inspiring them to innovate in their fields, Boone says.

ACCESS, in other words, sets the tone for the entire doctoral process, which is founded on innovation, research and critical thinking.

doctoral dissertation purpose

The five phases of the dissertation

Writing the dissertation occurs in what Luster describes as five phases over the course of different classes. These are:

  • Phase 1: Develop a  prospectus , which is an outline of the research project.
  • Phase 2: Draft the first chapter of the dissertation, which is known as the  précis .
  • Phase 3: Undergo a  concept review  and develop the second chapter.
  • Phase 4: Focus on the  proposal , write the third chapter and review chapters one through three.
  • Phase 5: Obtain the approval of the  Institutional Review Board , which evaluates research according to the University’s ethical standards.

Three friends work toward their doctorate degrees together

Better together: How three friends made earning their doctorates a team sport

The uopx difference.

The five phases of the dissertation writing process aren’t ubiquitous. Doctoral students work on a dissertation while going through the program at UOPX — which was very much intentional, according to Boone.

“We have five phases in the dissertation process and a deliverable at the end of each phase to encourage students to finish and to complete on time if they commit to the process,” Boone explains.

This is a notable improvement, according to Lorenzo. “It is more effective to start your research on day one than wait, because it's easier to identify the gap in research and eliminate wasted research time on topics that are not relevant to your study, and [it] helps contribute to the literature review of the study,” she says.

doctoral dissertation purpose

But this process isn’t the only benefit UOPX students enjoy. The doctoral program has several other distinctive features:

  • Once upon a time, students interviewed potential research chairs to take on the oversight of their program. The result was stressful, with doctoral candidates often casting a wide net in the hope of securing a chair and then potentially ending up with someone who wasn’t quite the perfect fit. Today, UOPX takes the stress and potential mismatch out of the equation. “Students do not search for  dissertation committee members ,” Boone says. “We assign them.”
  • Dissertations from UOPX tend to focus on  functional application  more so than just theory, Luster notes. This means topics have real-world applications, and communities and industries may benefit from the research. For example, one recent dissertation explored the integration of nurse graduates into hospital settings during COVID-19.
  • Doctoral candidates have access to  diverse and extensive resources . In addition to comprehensive documentation about the dissertation process at UOPX, candidates can leverage one-on-one appointments with the University’s library staff, engage in workshops with research chairs and seek opportunities to work as research assistants.
  • Rather than what Luster calls a sink-or-swim approach, UOPX has invested in a  mentor-driven approach . “I think that makes us largely different and successful with students, especially adult learners,” Luster says.

In the end, that sense of a safety net — both in terms of mentorship and the doctoral community itself — is one of the biggest reassurances doctoral candidates enjoy.

Lorenzo, for example, keeps in touch with a core group of colleagues she met through the program. “No one understands what you’re going through except for [your peers],” she notes.

Or, as Luster puts it: “You don’t have to worry, because you’ll acquire this information along the way, and you have a lot of good people to help you.”

doctoral dissertation purpose

How long is a doctoral dissertation?

Most are 100 to 300 pages and organized by chapters and/or sections and subsections. There are also often requirements for text size, page size and spacing that can depend on your doctoral program.

What are the parts of a dissertation?

A dissertation generally includes a Dissertation Acceptance Certificate, a title page, a copyright statement, an abstract (detailing the objective of the research, the methods and the outcome), a table of contents, the research itself and supplemental information (either as an appendix with charts and tables or as an uploaded file with digital information). Some dissertations include front and back matter, such as acknowledgments, a dedication, a glossary, a bibliography and related features.

Is a dissertation required for a doctorate?

Not always. While most doctoral and PhD degree programs require a dissertation, some don’t, and others require a capstone project.

What's the difference between a PhD and a doctorate?

Individuals who complete a PhD focus on producing new knowledge to contribute to a theory or body of research. Individuals who  complete a practitioner doctorate , on the other hand, focuses on how to apply knowledge to a field or particular issue.

want to read more like this?

doctoral dissertation purpose

University of Phoenix Accepted Me. Now What?

University life.

April 05, 2023 • 4 minutes

doctoral dissertation purpose

Time Management Skills for Dads - Online Adult Education

June 10, 2021 • 4 minute read

doctoral dissertation purpose

3 Ways to Jump-Start Your Doctoral Experience

September 28, 2022 • 5 Minutes

Harvard University Graduate School of Design

  • Harvard Library
  • Research Guides
  • Harvard Graduate School of Design - Frances Loeb Library

Write and Cite

  • Theses and Dissertations
  • Academic Integrity
  • Using Sources and AI
  • Academic Writing
  • From Research to Writing
  • GSD Writing Services
  • Grants and Fellowships
  • Reading, Notetaking, and Time Management

What is a thesis?

What is a dissertation, getting started, staying on track, thesis abstract, lit(erature) review.

A thesis is a long-term project that you work on over the course of a semester or a year. Theses have a very wide variety of styles and content, so we encourage you to look at prior examples and work closely with faculty to develop yours. 

Before you begin, make sure that you are familiar with the dissertation genre—what it is for and what it looks like.

Generally speaking, a dissertation’s purpose is to prove that you have the expertise necessary to fulfill your doctoral-degree requirements by showing depth of knowledge and independent thinking.

The form of a dissertation may vary by discipline. Be sure to follow the specific guidelines of your department.

  • PhD This site directs candidates to the GSAS website about dissertations , with links to checklists,  planning, formatting, acknowledgments, submission, and publishing options. There is also a link to guidelines for the prospectus . Consult with your committee chair about specific requirements and standards for your dissertation.
  • DDES This document covers planning, patent filing, submission guidelines, publishing options, formatting guidelines, sample pages, citation guidelines, and a list of common errors to avoid. There is also a link to guidelines for the prospectus .
  • Scholarly Pursuits (GSAS) This searchable booklet from Harvard GSAS is a comprehensive guide to writing dissertations, dissertation-fellowship applications, academic journal articles, and academic job documents.

Finding an original topic can be a daunting and overwhelming task. These key concepts can help you focus and save time.

Finding a topic for your thesis or dissertation should start with a research question that excites or at least interests you. A rigorous, engaging, and original project will require continuous curiosity about your topic, about your own thoughts on the topic, and about what other scholars have said on your topic. Avoid getting boxed in by thinking you know what you want to say from the beginning; let your research and your writing evolve as you explore and fine-tune your focus through constant questioning and exploration.

Get a sense of the broader picture before you narrow your focus and attempt to frame an argument. Read, skim, and otherwise familiarize yourself with what other scholars have done in areas related to your proposed topic. Briefly explore topics tangentially related to yours to broaden your perspective and increase your chance of finding a unique angle to pursue.

Critical Reading

Critical reading is the opposite of passive reading. Instead of merely reading for information to absorb, critical reading also involves careful, sustained thinking about what you are reading. This process may include analyzing the author’s motives and assumptions, asking what might be left out of the discussion, considering what you agree with or disagree with in the author’s statements and why you agree or disagree, and exploring connections or contradictions between scholarly arguments. Here is a resource to help hone your critical-reading skills:

https://guides.library.harvard.edu/sixreadinghabits  

https://youtu.be/BcV64lowMIA

Conversation

Your thesis or dissertation will incorporate some ideas from other scholars whose work you researched. By reading critically and following your curiosity, you will develop your own ideas and claims, and these contributions are the core of your project. You will also acknowledge the work of scholars who came before you, and you must accurately and fairly attribute this work and define your place within the larger discussion. Make sure that you know how to quote, summarize, paraphrase ,  integrate , and cite sources to avoid plagiarism and to show the depth and breadth of your knowledge.

A thesis is a long-term, large project that involves both research and writing; it is easy to lose focus, motivation, and momentum. Here are suggestions for achieving the result you want in the time you have.

The dissertation is probably the largest project you have undertaken, and a lot of the work is self-directed. The project can feel daunting or even overwhelming unless you break it down into manageable pieces and create a timeline for completing each smaller task. Be realistic but also challenge yourself, and be forgiving of yourself if you miss a self-imposed deadline here and there.

Your program will also have specific deadlines for different requirements, including establishing a committee, submitting a prospectus, completing the dissertation, defending the dissertation, and submitting your work. Consult your department’s website for these dates and incorporate them into the timeline for your work.

Accountability

Sometimes self-imposed deadlines do not feel urgent unless there is accountability to someone beyond yourself. To increase your motivation to complete tasks on schedule, set dates with your committee chair to submit pre-determined pieces of a chapter. You can also arrange with a fellow doctoral student to check on each other’s progress. Research and writing can be lonely, so it is also nice to share that journey with someone and support each other through the process.

Common Pitfalls

The most common challenges for students writing a dissertation are writer’s block, information-overload, and the compulsion to keep researching forever.

There are many strategies for avoiding writer’s block, such as freewriting, outlining, taking a walk, starting in the middle, and creating an ideal work environment for your particular learning style. Pay attention to what helps you and try different things until you find what works.

Efficient researching techniques are essential to avoiding information-overload. Here are a couple of resources about strategies for finding sources and quickly obtaining essential information from them.

https://owl.purdue.edu/owl/subject_specific_writing/writing_in_literature/writing_in_literature_detailed_discussion/reading_criticism.html

https://students.dartmouth.edu/academic-skills/learning-resources/learning-strategies/reading-techniques

Finally, remember that there is always more to learn and your dissertation cannot incorporate everything. Follow your curiosity but also set limits on the scope of your work. It helps to create a folder entitled “future projects” for topics and sources that interest you but that do not fit neatly into the dissertation. Also remember that future scholars will build off of your work, so leave something for them to do.

An abstract is a short (approximately 200-word) summary or overview of your research project. It provides enough information for a reader to know what they will find within the larger document, such as your purpose, methodology, and results or conclusion. It may also include a list of  keywords. An abstract is an original document, not an excerpt, and its contents and organization may vary by discipline.

A literature review establishes a set of themes and contexts drawn from foundational research and materials that relate to your project. It is an acknowledgment that your scholarship doesn’t exist in a vacuum. With the review, you identify patterns and trends in the literature to situate your contribution within the existing scholarly conversation.

What is a literature review? A literature review (or lit review, for short) is a critical analysis of published scholarly research (the "literature") related to a specific topic. Literature here means body of work, which traditionally was done in written form and may include journal articles, books, book chapters, dissertations and thesis, or conference proceedings. In the case of design, however, literature has an expanded breadth since the body of work is oftentimes not represented by words. A design review may include plans, sections, photographs, and any type of media that portrays the work.

A literature review may stand on its own or may be inside a larger work, usually in the introductory sections. It is thorough but not exhaustive--there will always be more information than you can reasonably locate and include. Be mindful of your scope and time constraints and select your reviewed materials with care. A literature review

  • summarizes the themes and findings of works in an area
  • compares and contrasts relevant aspects of literature on a topic
  • critically assesses the strengths and omissions of the source material
  • elaborates on the implications of their findings for one's own research topic

What does a literature review look like? Each discipline has its own style for writing a literature review; urban planning and design lit reviews may look different than those from architecture, and design lit reviews will look significantly different than reviews from the biological sciences or engineering. Look at published journal articles within your field and note how they present the information.

  • Introduction: most scholarly articles and books will have a literature review within the introductory sections. Its precise location may vary, but it is most often in the first few paragraphs or pages.

Dedicated literature reviews: these are stand-alone resources unto themselves. You can search for "literature review" and a topic, and you may find that one already exists. These literature reviews are useful as models within your field, for finding additional sources to explore, and for beginning to map the general relationships within the scholarly conversation around your topic. Be mindful not to plagiarize the source material.

Database search tip : Add the phrase "literature review" to your search to find published literature reviews.

Browsing through theses and dissertations of the past can help to get a sense of your options and gain inspiration but be careful to use current guidelines and refer to your committee instead of relying on these examples for form or formatting.

Theses at the Frances Loeb Library  is a research guide to finding p ast GSD theses.

DASH Digital Access to Scholarship at Harvard.

HOLLIS Harvard Library’s catalog provides access to ProQuest Dissertations & Theses Global .

MIT Architecture has a list of their graduates’ dissertations and theses.

Rhode Island School of Design has a list of their graduates’ dissertations and theses.

University of South Florida has a list of their graduates’ dissertations and theses.

Harvard GSD has a list of projects, including theses and professors’ research.

  • << Previous: Reading, Notetaking, and Time Management
  • Next: Publishing >>
  • Last Updated: Oct 8, 2024 3:11 PM
  • URL: https://guides.library.harvard.edu/gsd/write

Harvard University Digital Accessibility Policy

IMAGES

  1. Purpose of a dissertation introduction

    doctoral dissertation purpose

  2. Writing a PhD Statement of Purpose? Check Out Our Service

    doctoral dissertation purpose

  3. 12 Excellent Statement of Purpose Examples to Inspire You

    doctoral dissertation purpose

  4. What is a PhD Dissertation and How to Structure it?

    doctoral dissertation purpose

  5. What Is a Doctoral Dissertation? Writing Guide and Expert Tips

    doctoral dissertation purpose

  6. How To Write A Dissertation Proposal For A Research Paper?

    doctoral dissertation purpose

COMMENTS

  1. Purpose Statement - Section 1 - LibGuides at National University

    The purpose statement succinctly explains the objectives of the doctoral project or dissertation-in-practice. These objectives must directly address the problem. The purpose statement also identifies the project methodology and design.

  2. What Is a Dissertation? | Guide, Examples, & Template - Scribbr

    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.

  3. Doctoral Dissertation: Essential Guide - GradSchools.com

    For students who are working on completing a doctoral degree, a dissertation may be one of the important components of that final educational path. It is a long-term project, one that may take years to complete after completing a wide range of research and course work.

  4. College of Doctoral Studies Dissertation Guide

    Doctoral students are accountable for writing all chapters of the proposal and dissertation while enrolled in dissertation classes and independently outside of designated dissertation courses. Students select dissertation topics that reflect gaps in the literature or problems identified from their practitioner experience.

  5. The Dissertation Handbook will make that journey smoother ...

    It outlines the steps for organizing the oral defense, the requirements of the composition the dissertation committee, and the responsibilities of its members.

  6. What is a Dissertation? A Guide | University of Phoenix

    According to Rodney Luster, PhD, a dissertation can enhance societys overall knowledge and understanding about an issue and ignite a person’s area of interest and expertise, as well as enhance that expertise.

  7. Research Guides: Write and Cite: Theses and Dissertations

    Generally speaking, a dissertation’s purpose is to prove that you have the expertise necessary to fulfill your doctoral-degree requirements by showing depth of knowledge and independent thinking. The form of a dissertation may vary by discipline. Be sure to follow the specific guidelines of your department.

  8. The purpose statement | Lærd Dissertation - Laerd

    The purpose statement is made up of three major components: (1) the motivation driving your dissertation; (2) the significance of the research you plan to carry out; and (3) the research questions you are going to address.

  9. The Dissertation | GSAS - Columbia University

    The PhD dissertation is a research document that makes a significant and original contribution to existing knowledge in the discipline. While the precise form of the dissertation will vary by field, the dissertation's fundamental function as an element of doctoral training is to attest to the author’s capacity to produce novel scholarship ...

  10. What Is a Doctoral Dissertation? Writing Guide and Expert Tips

    The purpose of a dissertation is to show everything that youve learned, everything youve taken in throughout your doctoral education, in an applied form of writing. How Long Is a Doctoral Dissertation? It really can’t be emphasized enough: Dissertations are comprehensive works. This is less of a long research paper and more of a full on book.