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Educational Psychology


Dissonance theory

Paradigm of overjustification:

Lepper, Greene, & Nisbett (1973)--in the reader. In this situation, children who already like to draw
receive an additional reason why they do it ("overjustification"), namely, an award. Under this new
self-interpretation, they don't draw anymore because they like it but because they want they award; as a
result, their drawing is less fun (and less good).

Forbidden Toy Study
The "Overjustification" Paradigm

Felt Tip Marker Study
Effects of Extrinsic Rewards on Motivation and Learning

The "Overjustification " Hypothesis:
A personís intrinsic interest in an activity may be decreased by inducing them to engage in the activity as an explicit means to some extrinsic goal.

Page created on October 17th, 1999
Last updated on October 17th, 1999

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