Metric
Return rate after a reward is shown
Share of users shown a reward who return within their devoted cadence. The measured evidence for the Variable reward link: rewards should pull people back, not only please them once.
Return
Plain label: share of users who come back after seeing a rewardAlso known as: post-reward return, reward return rate
Compare with users who did not see the reward in the same period; a novelty bump fades within a few cycles.
Sources
Book content is paraphrased, never quoted at length. Last verified October 24, 2026.
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