Diagnostic question · Hooked
Does the core reward always deliver?
Checks that the core reward reliably relieves the user's itch before any variety is added.
ValueReturn
Plain label: reward reliability question
Does the core reward reliably solve the user's problem every time they come for it?
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.4
Source IDs: HK-Q72HK-RWD26
Book content is paraphrased, never quoted at length. Last verified October 24, 2026.
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