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| Criterion |  UX Research Usability Testing |  Growth A/B Testing |  UX Research Card Sorting |
|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 1-2 h je Session | 1-4 Wochen | 20-45 min |
Participantsdifferent | Based on research question | 1-6 | Based on research question |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Experiment results, Decision log, Learning summary | Content groups, Label set, IA hypotheses |
Tagsno overlap | ValidationUXPrototype | ExperimentsGrowthAnalyticsValidation | Information architectureNavigationStructure |
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