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The influences of intrinsic motivation on execution of social behaviour within the theory of planned behaviour
Author(s) -
Chatzisarantis Nikos L. D.,
Hagger Martin S.,
Smith Brett,
Sage Luke D.
Publication year - 2006
Publication title -
european journal of social psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 111
eISSN - 1099-0992
pISSN - 0046-2772
DOI - 10.1002/ejsp.299
Subject(s) - psychology , theory of planned behavior , intrinsic motivation , confirmatory factor analysis , self determination theory , regression analysis , social psychology , predictive validity , multilevel model , goal theory , discriminant validity , developmental psychology , structural equation modeling , psychometrics , statistics , control (management) , management , mathematics , autonomy , internal consistency , political science , law , economics
The present study examined the utility of two forms of measurement of intrinsic motivation in increasing the predictive validity of the theory of planned behaviour. Self‐report questionnaires were administered to school pupils ( n = 174), University students ( n = 129) and adults ( n = 157). The data were analysed using confirmatory factor analysis and regression analysis. Confirmatory analysis supported discriminant validity between Forms A and B measures of intrinsic motivation. In addition, hierarchical regression analysis demonstrated that Form B measure of intrinsic motivation increased effectiveness of the theory of planned behaviour in predicting intentions and social behaviour. Further, the regression analysis showed that age and past behaviour did not reduce the effects observed for intrinsic motivation. It is recommended that intrinsic motivation could increase the predictive utility of the theory of planned behaviour. Copyright © 2006 John Wiley & Sons, Ltd.