Abstract
Festinger and Carlsmith’s classic — paying one dollar to endorse a boring task changed attitudes more than paying twenty — insufficient justification drives dissonance reduction.
Festinger & Carlsmith (1959). Journal of Abnormal and Social Psychology, 58(2), 203–210. DOI
Key findings
- Insufficient justification — Small reward for inconsistent behaviour forces attitude shift to reduce dissonance.
- Large reward buffer — Big payment buys compliance without needing to believe the lie.
Application
When a small compromise eats your story — tiny incentives can rewrite belief more than obvious bribes. See Cognitive dissonance lineage.