User Experience
Sample Size
Plain English
How many people you include in your serviceUser ResearchUnderstand user behaviour, validate ideas, and make clearer product decisions with evidence you can act on.Open service.
Definition
Sample size refers to the number of participants included in a study or test.
In practice
Determined based on serviceUser ResearchUnderstand user behaviour, validate ideas, and make clearer product decisions with evidence you can act on.Open service goals, methods, and level of glossaryConfidenceConfidence is the level of certainty in a decision or outcome based on available evidence.Open glossary term required.
The reality
Bigger is not always better, quality and glossaryFaceted NavigationFaceted navigation is a system that allows users to filter content across multiple attributes simultaneously, combining different criteria to refine results.Open glossary term matter more.
FAQ
Common questions
A few practical answers to the questions that usually come up around this term.
What is sample size?
It is the number of participants in a study.
How do you decide sample size?
Based on serviceUser ResearchUnderstand user behaviour, validate ideas, and make clearer product decisions with evidence you can act on.Open service goals and method.
Is bigger always better?
No, glossaryFaceted NavigationFaceted navigation is a system that allows users to filter content across multiple attributes simultaneously, combining different criteria to refine results.Open glossary term and quality matter more.
What is a common mistake?
Using too few or the wrong participants.
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