How to Write a Methodology Chapter
Quick answer: A methodology chapter explains and justifies how you conducted your research. Cover your research philosophy and approach, your design (qualitative, quantitative or mixed), data-collection methods, sampling, your analysis technique, and ethics — always justifying each choice against your research question.
Purpose of the methodology
The methodology chapter must let another researcher understand — and in principle replicate — your study. Every choice needs a justification tied to your research question, not just a description.
What to cover
- Research philosophy — e.g. positivism, interpretivism.
- Approach — deductive or inductive.
- Design/strategy — survey, case study, experiment, etc.
- Data collection — questionnaires, interviews, secondary data.
- Sampling — who/what, how many, and how selected.
- Analysis — statistical tests, thematic analysis, etc.
- Ethics — consent, confidentiality, risk.
- Limitations — honest constraints of your method.
Qualitative vs quantitative
Quantitative research measures and tests with numbers and statistics; qualitative research explores meaning through words, themes and interpretation. Mixed methods combine both. Choose based on what your question actually needs.
Justify, don’t just describe
The mark comes from justification: why interviews rather than a survey? Why this sample? Why thematic analysis? Anticipate the examiner asking ‘why?’ at every step.
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Frequently Asked Questions
What’s the difference between methodology and methods?
Methodology is the overall strategy and justification; methods are the specific tools (e.g. interviews, SPSS) you use to collect and analyse data.
Do I need to discuss research philosophy?
Most master’s and PhD dissertations expect it; some undergraduate projects don’t. Check your programme’s requirements.
How long is a methodology chapter?
Often around 15% of the dissertation, but it varies. Justification matters more than length.
Should I mention limitations here?
Yes — a brief, honest account of your method’s limitations shows critical awareness and is expected.
What is sampling?
How you select the participants or data for your study — e.g. random, purposive or convenience sampling — which you must justify.