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Evaluate Model-Targeted Subscription Notifications

DiscordData Scientist · Technical Screen

Last updated

Evaluate subscription-targeting notifications with incrementality metrics, A/A preparation, flat-result diagnosis, and alternative causal designs.

Evaluate Model-Targeted Subscription Notifications

A classification model identifies users likely to subscribe, and the product team plans to send those users a notification. Design a measurement and experimentation plan. Include checks before the experiment, how to interpret a flat result, and alternatives to a conventional user-level A/B test with their trade-offs. Explain how the plan separates model prediction quality from the incremental effect of sending notifications.

Hints

Hint 1

A likely subscriber may subscribe anyway: High predicted conversion does not establish that the notification changes the user’s decision.

Follow-up questions

  • How would you decide whether to target likely subscribers or users most persuadable by a notification?
  • What evidence can an offline classifier evaluation provide before any notification is sent?