The overjustification effect is a phenomenon in psychology in which providing expected external incentive, such as money or prizes, for an already intrinsically rewarding activity can reduce a person's intrinsic motivation to perform that activity. It is commonly understood in terms of the interaction between intrinsic and extrinsic motivation, where external rewards may undermine pre-existing intrinsic interest, a process often described as motivational "crowding out".
The overjustification effect is a phenomenon in psychology in which providing expected external incentive, such as money or prizes, for an already intrinsically rewarding activity can reduce a person's intrinsic motivation to perform that activity. It is commonly understood in terms of the interaction between intrinsic and extrinsic motivation, where external rewards may undermine pre-existing intrinsic interest, a process often described as motivational "crowding out".
Source: Wikipedia "Overjustification effect" · CC BY-SA 4.0
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