Qualitative research methods: a plain-English guide

By Dr. Rafiq Muhammad, MD, PhD · Updated June 2026

Qualitative research is the systematic study of meaning, experience, and process — turning words, not numbers, into evidence. It has its own toolkit (how you collect data, how you analyse it) and its own standards of rigor. This guide covers the parts students most often need to get right.

The core skills

Thematic analysis

The most widely used approach — Braun & Clarke’s six phases, from familiarisation to reporting themes.

Free tool: Qualitative Coding Planner
Grounded theory

Building theory from the data itself via open, axial, and selective coding and constant comparison.

How to code qualitative data

Open, axial, and selective coding, and how to build a codebook that keeps it consistent.

Free tool: Qualitative Coding Planner
Conducting research interviews

Semi-structured interviews — the guide, the probes, and how to run them well.

Free tool: Interview Guide Builder
Trustworthiness & rigor

Credibility, transferability, dependability, confirmability — and where saturation fits.

How it fits together

A qualitative study runs: a question about how or why → a design and purposive sample → data collection (often interviews) → coding and analysis (e.g. thematic analysis or grounded theory) → and, throughout, attention to trustworthiness. Rigor here isn’t about p-values — it’s about a transparent, defensible, reflexive process.

Use the tools as you work

Get the free Qualitative Analysis toolkit

Codebook templates, coding worksheets, interview-guide scaffolds, and a trustworthiness checklist from QDA with ChatGPT and QualCoder. We’ll email you the download link.

One email with your download, then occasional research tips. One-click unsubscribe, anytime. We never sell your data.

Get QDA with ChatGPT and QualCoder

Frequently asked questions

What is qualitative research?

The systematic study of meaning, experience, and process using non-numerical data — interviews, observations, documents — analysed by coding and interpretation to answer “how” and “why” questions.

Which analysis approach should I use?

Thematic analysis is a flexible default; grounded theory builds theory; framework and content analysis suit applied/structured work. Match it to your question and epistemology.

How is rigor judged in qualitative research?

By trustworthiness — credibility, transferability, dependability, and confirmability — supported by reflexivity and an audit trail, not by statistics.

← All guides Browse the free tools →