Dissertation

How to Write a Strong Research Question for Your Dissertation

๐Ÿ“… August 2026โฑ 9 min read๐ŸŽ“ All Levels๐ŸŒ Worldwide

Your research question is the foundation of your entire dissertation. Get it right and everything else โ€” your literature review, methodology, analysis and conclusion โ€” falls into place. Get it wrong and you will struggle at every stage. This guide shows you exactly how to write a research question that is focused, feasible and academically rigorous.

๐Ÿ“‹ Table of Contents

  1. What Makes a Good Research Question?
  2. Types of Research Questions
  3. Step-by-Step: Writing Your Research Question
  4. The PICO Framework (Health Sciences)
  5. Good vs Bad Examples
  6. Research Aims and Objectives
  7. FAQs

What Makes a Good Research Question?

A strong research question should be: Focused โ€” specific enough to be answered within your word count and timeframe; Feasible โ€” researchable with available data and resources; Original โ€” addressing a genuine gap in the literature; Significant โ€” worth answering for academic or practical reasons; Clear โ€” unambiguous and precisely worded.

Types of Research Questions

Step-by-Step: Writing Your Research Question

1. Choose a broad topic area

Start with a subject you are genuinely interested in โ€” you will be spending months with it. Review your course content, identify debates that interest you and scan recent journal articles for emerging themes.

2. Review the existing literature

Before finalising your question, conduct a preliminary literature review. Identify what has already been studied and where the gaps are. Your research question should address one of those gaps.

3. Narrow your focus

Most students start with a question that is far too broad. Narrow it by specifying: the population (who?), the context (where? when?), the variable (what?), and the relationship (how? why?).

4. Test your question

Ask yourself: Can this be answered with available data? Is it too simple to require a dissertation? Does it raise ethical concerns? Is it genuinely unanswered in the literature?

The PICO Framework (Health Sciences)

For health, nursing and medical dissertations, the PICO framework helps structure your research question: Population, Intervention, Comparison, Outcome.

In adult patients with Type 2 diabetes (P), does a low-carbohydrate diet (I) compared to a standard diet (C) improve glycaemic control (O) over 12 months?

Good vs Bad Examples

โŒ Too broad:

What is the impact of social media on young people?

โœ… Focused and specific:

How does Instagram use among female university students in the UK aged 18โ€“25 affect self-reported body image satisfaction?

โŒ Too narrow (already answered):

Does smoking cause lung cancer?

โœ… Addresses a genuine gap:

To what extent do NHS smoking cessation programmes reduce relapse rates among patients with co-occurring depression?

Research Aims and Objectives

Once you have your research question, you need to write your research aims and objectives. Your aim is the overarching purpose of your study โ€” what you want to achieve. Your objectives are the specific steps you will take to achieve that aim. Objectives should be SMART: Specific, Measurable, Achievable, Relevant, Time-bound.

Aim: To investigate the relationship between Instagram use and body image satisfaction among female UK university students.

Objectives:
1. To review existing literature on social media use and body image.
2. To collect survey data from 100 female students at UK universities.
3. To analyse the relationship between daily Instagram usage and self-reported body image scores.
4. To identify factors that moderate this relationship.

FAQs

How many research questions should a dissertation have?

Most dissertations have one primary research question and two to four sub-questions or objectives. Too many questions dilute your focus.

Can I change my research question after starting?

Yes โ€” especially after your literature review reveals unexpected gaps. Always discuss changes with your supervisor before proceeding.

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