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Metricsstandard
Ads revenue would rise 5% if you added one more ad to the feed. Should you?
How to approach it
Ask about long-term effects. A short test may show revenue gains while hiding slow damage to engagement.
How a strong answer opens
“I'd like to know how the 5% was measured and over how long. A short test can show revenue gains while hiding slow damage to engagement.”
Outline of a strong answer
Try answering out loud for a few minutes before you open this.
- Clarify how the 5% was measured and over how long
- Look at user metrics: time spent, sessions, retention
- Consider long-term holdouts to catch slow decline
- Check effect on ad quality and advertiser results
- Segment: new users may react differently
- Recommend: ship only if long-term guardrails hold
Where this question usually goes wrong
Saying yes based on a short test without a long-term holdout to catch users slowly drifting away.
Learn the method
Making trade-off decisions in Module 2, Metrics and execution.
The full kit has worked answers in full, start to finish, for every round type. $129 once.
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