Intrinsic vs Extrinsic Motivation

A topic within Motivation & Emotion, itself one of 10 topics in that field and part of Psychology.

Reading on Intrinsic vs Extrinsic Motivation

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Paper1971

Effects of Externally Mediated Rewards on Intrinsic Motivation

Edward L. Deci

Reports that paying people for a task they already found interesting reduced how much time they later spent on it voluntarily, the original experimental evidence that external rewards can undermine intrinsic motivation.

link checked 17 Sept 2026

Psychology · Motivation & Emotion

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Paper1999

A Meta-Analytic Review of Experiments Examining the Effects of Extrinsic Rewards on Intrinsic Motivation

Edward L. Deci, Richard Koestner & Richard M. Ryan

A meta-analysis of over a hundred experiments confirms that tangible rewards contingent on task completion reliably undermine intrinsic motivation for that task, rebutting critics who had argued the undermining effect was a statistical artefact.

Psychology · Motivation & Emotion

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Reading on Intrinsic vs Extrinsic Motivation

Effects of Externally Mediated Rewards on Intrinsic Motivation

A Meta-Analytic Review of Experiments Examining the Effects of Extrinsic Rewards on Intrinsic Motivation

Other topics in Motivation & Emotion