Festinger and Carlsmith's 1959 study demonstrating that subjects paid one dollar to misrepresent a boring task rated it more enjoyable than subjects paid twenty — the counterintuitive finding that insufficient external justification forces internal attitude change.
The 1959 experiment by Festinger and James Carlsmith at Stanford recruited subjects to perform an extraordinarily tedious task, then asked them to tell the next participant that the task had been enjoyable. Half were paid twenty dollars for the misrepresentation; half were paid one dollar. The subjects who received the larger payment subsequently rated the task accurately — as boring. The subjects who received the smaller payment rated the task as enjoyable. The result violated behaviorist predictions: larger rewards should have produced larger attitude change. It confirmed dissonance theory with exceptional clarity: external justification absorbs dissonance, so when justification is inadequate, the mind generates internal justification by changing the attitude.
Forced Compliance Experiment
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The finding has implications that extend well beyond the laboratory. Subjects paid twenty dollars could attribute their behavior to the payment — they lied for money, and the money explained the lie. Subjects paid one dollar could not offload the