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The overjustification effect: A meta‐analysis
Author(s) -
Tang ShuHua,
Hall Ver C.
Publication year - 1995
Publication title -
applied cognitive psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.719
H-Index - 100
eISSN - 1099-0720
pISSN - 0888-4080
DOI - 10.1002/acp.2350090502
Subject(s) - psychology , meta analysis , social psychology , cognitive psychology , developmental psychology , medicine
This article reports the results of a meta‐analysis using 50 experimental studies (256 effect sizes) of the overjustification effect. In general, we found support for the effect across age, dependent measure, and design type in specific situations where it is predicted to occur. Findings are less supportive of the theory for situations where there should be no difference between experimental and control groups (e. g. non‐contingent or unexpected reward). Suggestions for future research are made.