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| Criterion |  UX Research User Interviews |  Product Discovery Learning Card |  Growth A/B Testing |  Growth Growth Experiment |
|---|---|---|---|---|
Purposedifferent | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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 growth ideas surface quickly, the temptation to build immediately instead of learning is high. A Growth Experiment frames an assumption so target group, lever, and measurement are clear before the first deployment. |
Complexitydifferent | Low | Low | High | Medium |
Timedifferent | 30–60 min per interview | 25-40 min | 1-4 Wochen | 1-2 Wochen |
Participantsdifferent | 1 participant per interview | 1-5 | 1-6 | 1-6 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Learning Card with evidence and next action | Experiment results, Decision log, Learning summary | Experiment card, Result summary, Next bet |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryLearning | ExperimentsGrowthAnalyticsValidation | MarketingGrowthExperimentsLearning |