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| Criterion |  UX Research Card Sorting |  Growth A/B Testing |  UX Research Affinity Diagramming |  UX Research Empathy Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | 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 research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | When a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 20-45 min | 1-4 Wochen | 45–90 min | 30–60 min |
Participantsdifferent | Based on research question | 1-6 | 3-10 | 4-8 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Content groups, Label set, IA hypotheses | Experiment results, Decision log, Learning summary | Theme clusters, Insight statements, Opportunity areas | Empathy Map, Assumptions List, Research Gaps |
Tagsno overlap | Information architectureNavigationStructure | ExperimentsGrowthAnalyticsValidation | SynthesisQualitativeRoot cause | SynthesisQualitativeWorkshop |