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Diagnostic question

Return rate after a reward

Measures whether users return more after a reward is shown, and whether that lift fades with cohort age.

ReturnStay

Plain label: reward lift question

The question we ask

Do users come back more often after a reward is shown to them, and is that lift fading in older cohorts?

Limits

What we don’t claim

Sources

Book content is paraphrased, never quoted at length. Last verified October 24, 2026.

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