What Should a Dissertation Include?

If you're asking what should a dissertation include, you're not alone. Many doctoral students feel uncertain about the structure and content of a dissertation when they first sit down to write one. While the exact format varies by field and institution, most dissertations follow a recognizable structure that moves from introducing the research problem through to presenting findings and conclusions. This guide walks you through each section, what it should contain, and why it matters.


How Is a Dissertation Structured?

Most dissertations are organized into five core chapters, though some fields use a different number of chapters or combine sections differently. Always confirm the required structure with your department and dissertation committee before you begin. The standard framework covers the following sections:


  • Introduction
  • Literature Review
  • Methodology
  • Results and Findings
  • Discussion and Conclusions

In addition to these core chapters, most dissertations also include a title page, abstract, table of contents, list of figures and tables (where applicable), acknowledgements, and a full reference list or bibliography. Some programs also require appendices for supplementary data, instruments, or materials. You can read more detailed information on the sections of a thesis at "How Many Chapters in a Dissertation?"


What Should the Introduction Include?

The introduction establishes the foundation for your entire dissertation. It should provide background on your research topic, articulate the problem your study addresses, identify your research questions or hypotheses, explain the significance of the research, and outline the structure of the dissertation. Some students find it easier to write the introduction last, once the rest of the dissertation is complete and they have a clear picture of what the full document presents. Others prefer to draft it early as a way of clarifying the direction of the project. Either approach is valid, but the introduction should always be reviewed and refined at the end.


What Should the Literature Review Include?

The literature review situates your research within the existing body of knowledge in your field. It should do more than summarize previous studies. A strong literature review identifies the theoretical or conceptual framework that informs your research, critically evaluates relevant studies, highlights gaps or contradictions in the existing research, and makes a clear case for why your study is needed. Focus on sources from the past decade where possible, and organize your discussion around your research questions rather than chronologically or by author.


What Should the Methodology Include?

The methodology section explains exactly how you conducted your research. It should describe your research design, the population and sample, data collection methods and instruments, procedures, and the analytical approach you used to answer your research questions. Whether your study is qualitative, quantitative, or mixed methods, the methodology must be described in enough detail that another researcher could replicate your study and reach the same conclusions. In most programs, this chapter must be approved by your dissertation committee and your institution's research board before data collection can begin.


What Should the Results Section Include?

The results chapter presents the data you collected and the outcomes of your analysis. It should restate your research questions at the outset, then present findings in a logical, organized sequence. Use tables, figures, and graphs to illustrate your results clearly, and provide enough detail to support the discussion that follows. The results section should be objective and factual, reporting what you found without interpreting or drawing conclusions, which is reserved for the discussion chapter.


What Should the Discussion and Conclusions Include?

The final chapter is where you interpret your findings, connect them to the existing literature, and articulate the contribution your research makes to the field. This chapter typically covers:


  • Discussion of findings. How your results align with or challenge previous research reviewed in your literature review.
  • Implications. What your findings mean for theory, practice, or policy in your field.
  • Limitations. An honest account of the constraints of your study and how they affect the interpretation of your results.
  • Recommendations. Suggestions for future researchers who want to extend or build on your work.
  • Conclusions. Your overall conclusions about the research questions, grounded firmly in your findings.

What Else Should a Dissertation Include?

Beyond the core chapters, a complete dissertation typically includes the following front and back matter:


  • Title page. Your full name, dissertation title, institution, department, degree, and submission date.
  • Abstract. A concise summary of the research problem, methodology, key findings, and conclusions, usually between 150 and 350 words depending on your institution's requirements.
  • Table of contents. A structured list of all chapters, sections, and sub sections with page numbers.
  • List of figures and tables. Required when your dissertation includes charts, graphs, images, or data tables.
  • Acknowledgements. An optional but conventional section thanking your committee, colleagues, and others who supported your research.
  • References or bibliography. A complete list of all sources cited in your dissertation, formatted according to your required style guide such as APA, MLA, or Chicago.
  • Appendices. Supplementary materials such as survey instruments, interview transcripts, raw data, or IRB approval documentation.

Tips for Writing Your Dissertation

A few practical suggestions to help you work through the writing process:


  • Review dissertations from your program. Looking at completed dissertations from previous students in your department is one of the most useful things you can do early in the process. It gives you a concrete sense of the expected format, length, and level of depth.
  • Follow your institution's guidelines. Your graduate school handbook will specify formatting requirements for margins, font, spacing, chapter headings, and citation style. Follow these from the start to avoid reformatting later.
  • Work closely with your committee. Your dissertation committee is your most important resource. Communicate regularly, share drafts early, and incorporate feedback systematically at each stage.
  • Hire a professional editor before submission. Copy editing and proofreading are not the responsibilities of your committee. Before your final submission, work with a professional dissertation editor to review grammar, clarity, consistency, flow, and style guide compliance.

FAQs

What should a dissertation include?

A dissertation should include a title page, abstract, table of contents, introduction, literature review, methodology, results, discussion and conclusions, reference list, and appendices where applicable. The core chapters walk the reader from the research problem through to your findings and their implications. The exact structure varies by field and institution, so always confirm requirements with your department.


How long should a dissertation be?

Dissertation length varies significantly by field and degree level. Most doctoral dissertations in the social sciences and humanities run between 80,000 and 100,000 words, while STEM dissertations are often shorter. Master's theses are typically between 20,000 and 40,000 words. Your institution's guidelines and your committee are the best sources of guidance on expected length.


Does a dissertation need an abstract?

Yes, almost all dissertations require an abstract. The abstract is a concise summary of your research problem, methods, key findings, and conclusions. It is typically between 150 and 350 words, though requirements vary by institution and style guide. The abstract is usually one of the last things you write, as it summarizes the completed work.


What is the difference between a dissertation and a thesis?

Both follow a similar structure, but a dissertation is typically written for a doctoral degree and involves original research that makes a new contribution to the field. A thesis is generally written for a master's degree and may involve original research or a synthesis of existing knowledge. In some countries and institutions, the terms are used interchangeably, so check your program's specific requirements.


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