Guide
Five types of purposive sampling
Purposive sampling has up to 16 recognized types, but five cover most product, UX and market research. Criterion and homogeneous sampling go deep on a defined group, maximum variation looks for patterns across contexts, snowball reaches hard-to-find people and theoretical sampling follows your emerging analysis.
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What's in this guide
- Criterion: Select people who meet specific, predetermined criteria.
- Maximum variation: Cover the widest range of perspectives and contexts.
- Homogeneous: Study one subgroup in depth.
- Snowball: Participants refer others who also qualify.
- Theoretical: Recruit to test or extend theory as your analysis develops.
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<a href="https://www.koji.so/visuals/purposive-sampling-five-types"><img src="https://www.koji.so/visuals/purposive-sampling-five-types/purposive-sampling-five-types.png" alt="Listicle of the five most useful types of purposive sampling for product and UX research: criterion, maximum variation, homogeneous, snowball and theoretical." width="1080" height="1080" /></a>
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