Ideas, evidence and perspectives shaping research.
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 interviews it typically takes.
A practical guide to matching qualitative sampling decisions to the question, case context, and claims a study can support.
How to use saturation carefully without turning it into a universal number or a substitute for methodological judgement.
How to design a multimodal qualitative study where different materials deepen analysis rather than merely increase volume.
