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UX Research
Focus Groups: When and Why Not to Use Them — Quiz
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Question 1 of 5
Focus Groups: When and Why Not to Use Them
A product team wants to validate whether their new onboarding flow is easy to complete. They plan to gather 8 users in a conference room, show them the prototype on a large screen, and facilitate a group discussion about what they like, dislike, and find confusing. What is the core problem with this approach?
The sample size of 8 is too small — they need at least 40 participants for reliable findings about onboarding usability
Group observation of a prototype is neither a valid usability test nor a valid focus group — social dynamics will contaminate individual task reactions and no one actually attempts the tasks independently
Focus groups can work for interface evaluation, but the session needs to be at least 3 hours to cover all the onboarding steps
The approach is sound, but they should use a live product rather than a prototype to ensure realistic reactions
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