After Libby was promised a large reward for playing with a fun toy,she began to lose interest in playing with it.This best illustrates that excessive rewards can reduce

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Quizplus · Accepted Answer

This phenomenon is known as the overjustification effect, where an external reward (in this case, the promised large reward) undermines intrinsic motivation (in this case, Libby's natural interest in playing with the toy). The other options are not relevant to the scenario described.

After Libby Was Promised a Large Reward for Playing with a Fun