Why EdD Dissertations Are Different from PhD Dissertations

Why EdD Dissertations Are Different from PhD Dissertations

Although both the EdD (Doctor of Education) and PhD (Doctor of Philosophy) are doctoral-level qualifications, their dissertations are not the same in purpose, design, or expectations. Many education doctoral students struggle early on because they assume the two degrees require identical types of research. In reality, the differences are significant and directly influence methodology choice, writing style, and expected outcomes.

Understanding these differences helps students choose appropriate research designs, avoid unnecessary complexity, and align their dissertation with what examiners expect.

1. Purpose of the Degree

The most fundamental difference lies in the purpose of each doctorate.

EdD (Doctor of Education)

The EdD is a professional practice doctorate focused on solving real-world problems in education. It is designed for practitioners such as:

• Teachers

• School leaders

• Educational administrators

• Policy professionals

The goal is to improve practice, not necessarily to generate new theory.

PhD (Doctor of Philosophy)

The PhD is a research doctorate focused on generating new theoretical knowledge. It is more academic and theory-driven.

It is typically aimed at individuals pursuing:

• Academic careers

• Research positions

• Theoretical contributions to the field

2. Nature of the Dissertation

EdD Dissertation

EdD dissertations are usually:

• Applied in nature

• Focused on practical educational problems

• Designed to improve real-world practice

• Often based on local or institutional contexts

PhD Dissertation

PhD dissertations are typically:

• Theoretical or conceptual in focus

• Designed to contribute to academic literature

• Broader in scope and generalizability

• More concerned with theory development

3. Research Questions

EdD Research Questions

EdD questions tend to focus on:

• “How can we improve…?”

• “What strategies support…?”

• “What are practitioners’ experiences of…?”

They are action-oriented and practice-driven.

PhD Research Questions

PhD questions are more theoretical:

• “What explains…?”

• “How does a phenomenon occur…?”

• “What is the relationship between variables in a theoretical model?”

They aim to generate or extend theory.

4. Methodological Expectations

EdD Dissertations

EdD studies often use:

• Mixed methods research

• Qualitative case studies

• Action research

• Surveys in applied settings

The emphasis is on practicality and usefulness.

PhD Dissertations

PhD studies are more likely to include:

• Advanced quantitative modeling

• Grounded theory

• Experimental or quasi-experimental designs

• Highly structured qualitative methodologies

The emphasis is on methodological rigor and theoretical contribution.

5. The Role of Theory

In EdD Dissertations

Theory is used to:

• Support understanding of practice

• Frame the research problem

• Interpret findings in applied contexts

However, EdD research does not usually aim to build new theory.

In PhD Dissertations

Theory plays a central role in:

• Framing research questions

• Guiding methodology

• Generating new theoretical insights

Theory development or extension is often expected.

6. Scope and Generalizability

EdD

• Often context-specific

• Focused on a particular school, district, or system

• Findings may be locally applicable

PhD

• Broader scope

• Designed for wider generalization

• Aimed at contributing to academic knowledge beyond a single setting

7. Structure and Complexity

EdD Dissertations

Typically:

• More streamlined

• Focused on practical application

• Designed to be completed while working full-time

PhD Dissertations

Typically:

• More complex and extensive

• Longer literature reviews

• Deeper methodological exploration

• Higher theoretical density

8. Writing Style and Audience

EdD Writing Style

• Practical and applied tone

• Focus on implications for education practice

• Clear and accessible language

Audience:

• Practitioners

• School leaders

• Policy stakeholders

PhD Writing Style

• Academic and theoretical tone

• Emphasis on contribution to scholarly literature

• More technical language

Audience:

• Researchers

• Academics

• Journal communities

9. Common Misunderstandings Among Students

Many doctoral students make mistakes by assuming:

1. “EdD dissertations are easier PhDs”

This is incorrect. They are different, not easier.

2. “PhD methods are required for EdD”

EdD research does not need to be as theoretically dense or methodologically complex as a PhD.

3. “Both degrees require new theory”

Only PhDs typically emphasize theory development.

4. “Mixed methods is mandatory”

Neither degree requires mixed methods; it depends on the research question.

10. Implications for Dissertation Design

Understanding the distinction helps students:

• Choose appropriate research questions

• Avoid overcomplicating methodology

• Align expectations with their program

• Focus on either practice (EdD) or theory (PhD)

For EdD students especially, clarity of purpose is essential: the dissertation should solve a meaningful problem in educational practice.

How Dissertation Tutoring Can Help

Many students struggle because they design their dissertation without fully understanding the distinction between EdD and PhD expectations. Dissertation tutoring can help by:

• Clarifying degree-specific expectations

• Aligning research questions with program requirements

• Preventing unnecessary methodological complexity

• Supporting applied research design for EdD students

• Helping maintain focus on practical impact

This guidance is especially valuable in the early stages of dissertation development, where design decisions determine the entire research trajectory.

Final Thoughts on Why EdD Dissertations Are Different from PhD Dissertations

While EdD and PhD dissertations share the same academic level, they serve different purposes. The EdD focuses on improving educational practice, while the PhD focuses on generating new theoretical knowledge.

Recognizing this distinction helps doctoral students design more appropriate, focused, and successful dissertations. It also reduces confusion, prevents overcomplication, and ensures that the research aligns with the expectations of the degree.

Ultimately, the key difference is not difficulty—it is intent. One is designed to transform practice, and the other is designed to advance theory.