ISTQB CT-UT Practice Questions - ISTQB Certified Tester - Usability Testing Specialist (CT-UT) Exam

Nielsen's 5-user rule for formative usability testing is based on which assumption?

Five users statistically represent the entire population Five users typically uncover about 80% of usability problems in a single round Five users is the cap recommended by ISO 9241 Five users is the minimum for statistical significance

Correct Answer:

Five users typically uncover about 80% of usability problems in a single round

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