Metric · Hooked
Loaded-trigger yield
Share of the triggers that users' own investments loaded (a reply, a scheduled reminder, a result to check) that bring them back for a session. A leading proxy for Return experiments.
Plain label: return visits from triggers users set upAlso known as: loaded trigger conversion, investment-to-return yield
Investment that loads the next trigger is what turns a feedback loop into a hook. This metric checks that the loaded triggers actually return people. Log loads_trigger and trigger_id on investments and messages so the join is possible. HK-INV25 (Hooked Ch.5)
Limits
What we don’t claim
- The Hook Model is a practical design tool, not a validated or complete theory of behavior.Hooked, Introduction
Sources
Hooked · Nir Eyal
Ch.5
Book content is paraphrased, never quoted at length. Last verified October 24, 2026.
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