The Question You Should Ask Before 'How Many Users?' (w/ Laura Faulkner) | S2 E3

Send us Fan Mail How many users do you actually need for a usability study? In this episode of The Design Psychologist, Thomas Watkins talks with Laura Faulkner about one of the most repeated ideas in UX research: that five users are enough. Laura explains why that rule of thumb can be useful in some situations, but dangerous when teams treat it like a law. They discuss sample size, research risk, stakeholder alignment, and why the real question is not “How many users?” but “What decision are...