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UX Research
Usability Testing (Moderated & Unmoderated) — Quiz
5 questions
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Question 1 of 5
Usability Testing (Moderated & Unmoderated)
A team wants to measure whether a redesigned checkout flow improves task success rates with statistical confidence at the 95% level. How many participants do they need at minimum?
5 participants — the standard 'five-user rule' applies
12 participants — enough for directional qualitative findings
20 participants — sufficient for directional benchmarks
40 or more participants — required for 95% confidence in quantitative comparisons
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