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Usability Test
Tree Testing
Participants complete tasks by navigating a hierarchical information structure to locate specific items. Their performance is measured to assess how easily the structure supports finding information.
When This Method Fits
Typical duration
Days – Weeks
Typical cost
Low – Medium
Fidelity level
Mockup
Stage
Validation
Hypothesis type
Execution
Goal type
Deepen product-market fit, Drive corporate innovation / R&D, Improve operational efficiency
Randomization
N/A
Study design
Individual case report
Minimum units needed
20
1Best Fit When
Best when you need to test whether an information structure itself supports findability, isolated from visual design distractions.