TermCraft conventionFoundational
Sample Size
How many people you studied.
Definition
The number of participants or observations in a study, which determines what conclusions the data can support.
Craft convention. True because the industry converged on it. Breaking it costs familiarity, not correctness.
In plain language
How many people you studied.
Example
Five participants per segment is a reasonable qualitative starting point. Five is nowhere near enough to claim a percentage.
Continue from here
Each link says what the connection is, so you can tell a principle from an alternative from a thing people mix this up with.
Deeper reading
The full entry behind this definition.
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- Usability TestingResearch method