1989 Volume 29 Issue 2 Pages 153-159
This study was conducted to investigate the Cognitive Evaluation Theory (CET) in 66 Japanese sixth-grade children using the method of questionnaire on intrinsic motivation. The CET was proposed by Deci (1975) and it had to do with the effects of extrinsic rewards upon intrinsic motivation. In this study the subjects were randomly divided into 3 groups, i. e., verbal reward group, token reward group, and control group. The verbal reward group was praised every time they solved the puzzles. The token reward group was given a token card every time they solved the puzzles. The control group was only to solve them. After each treatment, they were asked 6 questions and they answered them on 5-point scale. Most of the results did not support the CET. Especially, the prediction on feeling of competence was not supported. Several problems were discussed for developing studies on the CET.