The aim of this study was to investigate the validity and reliability of the revised form of Harter’s Educational Motivation Scale. The sample consisted of 198 middle students (110 boys and 88 girls) who selected from six schools of central points in shiraz city by cluster sampling method. Internal consistency of each item score with total score was computed, the correlations range was between 0.30 to 0.78. In addition factor analysis extracted 4 factors which show obviously an overall intrinsic motivation factor and 3 subscales of extrinsic motivation with lower clarity. This result is in consistence with witch previously has been obtained by Harter(1981).
Also the relations between different scale’s dimensions and GPA were in expected direction that confirms the validity of the scale. And also the coefficients computed for test-retest and Chronbach's alpha of the motivation dimensions and subscales were large enough to show internal and time consistency of measures on Iranian students.
Bahrani, M. (2009). The Study of Validity and Reliability of Harter’s Scale of Educational Motivation. Journal of Psychological Studies, 5(1), 51-72. doi: 10.22051/psy.2009.1591
MLA
Mahmoud Bahrani. "The Study of Validity and Reliability of Harter’s Scale of Educational Motivation", Journal of Psychological Studies, 5, 1, 2009, 51-72. doi: 10.22051/psy.2009.1591
HARVARD
Bahrani, M. (2009). 'The Study of Validity and Reliability of Harter’s Scale of Educational Motivation', Journal of Psychological Studies, 5(1), pp. 51-72. doi: 10.22051/psy.2009.1591
VANCOUVER
Bahrani, M. The Study of Validity and Reliability of Harter’s Scale of Educational Motivation. Journal of Psychological Studies, 2009; 5(1): 51-72. doi: 10.22051/psy.2009.1591
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