How Many Interviews Is Enough? Sampling and Saturation
Why qualitative sample size isn't decided in advance the way survey sample size is, what "saturation" actually means, and what the evidence says about how many…
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Latest in Research design
8 published articles.
Designing a Semi-Structured Interview Guide
Why a semi-structured interview guide needs to be built and piloted systematically rather than written as a list of questions, and how researchers test one before…
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Building a Codebook That Survives Contact with Real Data
How to build a flexible codebook with definitions and decision rules that can develop without becoming inconsistent.
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From Research Question to Search Strategy: A Practical Starting Point
A practical way to turn a broad interest into a search strategy that can be reviewed, refined, and explained.
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What Makes Qualitative Data “Codable”? A Practical Framework Before You Start
A practical way to decide whether material is ready for qualitative coding, and what to do before creating a codebook.
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Sampling in Qualitative Research: Purposive, Theoretical, and Maximum Variation Sampling Explained
A practical guide to matching qualitative sampling decisions to the question, case context, and claims a study can support.
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How Many Interviews Are Enough? Saturation in Practice
How to use saturation carefully without turning it into a universal number or a substitute for methodological judgement.
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Designing Multimodal Studies: When to Combine Text, Audio, Video, and Images
How to design a multimodal qualitative study where different materials deepen analysis rather than merely increase volume.
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