Qualitative & Mixed-Methods Research
Understand experiences and implementation barriers while respecting the distinct methods used to study them.
Quick revision ↓ Medical Dictionary
01Questions about meaning and context
Qualitative research explores experiences, meanings, interactions and social processes. Interviews may reveal why patients miss appointments even when a quantitative survey records high stated motivation. The aim is often depth and explanation rather than estimating a population percentage. Choose the approach to fit the question and setting, and avoid judging it solely by the sample-size expectations of a prevalence survey.
02Sampling and data collection
Purposive sampling seeks people whose experiences can inform the question, sometimes deliberately including variation or contrasting cases. Interviews, focus groups and observation produce different kinds of information. A focus group can reveal shared norms but may inhibit discussion of sensitive experiences. Describe recruitment, setting, interview guides, recording and the relationship between researcher and participant so readers can understand how the material was generated.
03Analysis and reflexivity
Analysis often involves familiarisation, coding and development or interpretation of patterns, depending on the methodological approach. Explain how interpretations were developed and supported by data. Reflexivity examines how the researcher's position, assumptions and interactions shape the study. It is not a claim that all influence can be removed. Keep an analytic trail and consider material that challenges an emerging explanation.
04Credibility and transferability
Readers need enough context to assess whether findings may transfer to another setting. Quotations can illustrate interpretations but should not replace an explanation of the analytical process. Participant feedback, triangulation or multiple perspectives may be useful when consistent with the chosen method; none is a universal box that guarantees quality. Explain the adequacy of the sample in relation to the question and depth of information.
05Integrating methods
Mixed-methods research intentionally combines quantitative and qualitative approaches to answer linked questions. A survey might estimate attendance patterns, followed by interviews exploring barriers. Integration should occur in design, analysis or interpretation rather than presenting two unrelated studies together. Conflicting findings are informative: explore differences in samples, context and what each method measures instead of hiding the discrepancy or declaring one method automatically superior.
High-Yield Revision
- Qualitative findings explain experience and context rather than automatically estimating frequency.
- Reflexivity makes researcher influence visible.
- Mixed methods require purposeful integration.
Common Pitfalls
- Do not treat a few interview quotations as population prevalence estimates.
- Do not force every qualitative approach into the same checklist.
References & Further Reading
Use the full methods and relevant chapters when appraising a paper. These sources support further study; the examples and questions above are original teaching exercises.
- Oxford CEBM — Critical appraisal tools
- Cochrane Handbook — Methods for evidence synthesis
- CDC — Analysing and interpreting epidemiological data
- ASA — Statement on p-values and statistical significance
- Oxford CEBM — Likelihood ratios
- Cochrane — GRADE and summary of findings
- WMA — Declaration of Helsinki, 2024 revision
- EQUATOR — Reporting guideline library
- NIH OBSSR — Mixed-methods research resources
- Institute for Healthcare Improvement — Model for Improvement