overjustification
C2CEFR level
82/100Rarity: very rare
TechnicalRegister
The weakening of intrinsic motivation when an external reward is attached to an already enjoyable task.
Paying the volunteers triggered overjustification, and once the stipend stopped, fewer showed up than before.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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