How would you A/B test a redesigned dashboard?
Tests translating a vague goal ('more engagement') into a concrete engineering plan. A good answer defines key metrics first, then outlines user bucketing, instrumentation, and statistical analysis.
This question tests your ability to translate a vague business goal ('more engagement') into a concrete, measurable engineering plan. A great answer starts by defining specific primary and secondary metrics. Then, it details the implementation: user bucketing strategy, instrumentation of events, and statistical analysis plan (sample size, duration, p-value). A common red flag is jumping directly into implementation without first defining success or considering negative side effects (guardrail metrics).
Read the original → Wikipedia: A/B testing
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