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Information Architecture
Tree Testing — Quiz
5 questions
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Question 1 of 5
Tree Testing
A team wants to compare two competing IA structures using tree testing and make a statistically reliable decision at 95% confidence. What is the minimum number of participants they need?
5 participants — enough to identify the major usability problems
10–15 participants per variant — sufficient for directional IA findings
40–50 participants per tree variant, run as separate parallel arms
20 participants total, shown both trees in counterbalanced order
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