Goal-Gradient Effect
Updated 2026-08-11
INTRODUCTION
English translation pending.
CORE DEFINITION
The goal-gradient effect, described by Clark Hull in the 1930s and applied to consumer behavior by Ran Kivetz, Oleg Urminsky and Yuhuang Zheng, holds that effort increases as the perceived distance to a goal decreases. Rats run faster near the end of a maze, and customers buy coffee more frequently as a loyalty card approaches completion. The key qualifier is that the effect depends on perceived rather than actual progress: a card with two stamps already given is treated as further along than an empty one, even when both require the same number of purchases.
SCAFFOLDING EFFECT
Reduce cognitive load
- Progress design: Show people the distance already covered rather than the distance remaining. - Motivation lever: Manufacture a head start so a task begins with visible progress. - Deadline behavior: Expect effort to cluster near the end and plan capacity for that surge.
Anchor fast decisions
The value of finishing rises as the remaining effort falls, so the marginal return on additional effort grows as the goal approaches, which raises motivation. Perceived progress also feeds the desire to complete an interrupted task, and the two effects reinforce each other near the end. Because the mechanism runs on perception, an artificial head start produces the same acceleration as real progress, which is why endowed progress changes behavior without changing the work required.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- pubmed.ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/26063627/verified
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