Graduate Thesis Or Dissertation
 

The exercise motivation scale : its multifaceted structure and construct validity

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/08612r01g

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  • Building upon Deci and Ryan's (1985, 1991) self-determination theory as well as previous empirical work on motivation, the present study was designed to develop a multifaceted 31-item Exercise Motivation Scale (EMS). A series of pilot studies were first conducted in order to generate the 31 scale items. The EMS was then administered to male and female college students (N=592) who participated in various exercise activity classes offered through university physical activity programs. Using structural equation modeling methodology, evidence for a robust factor structure, subscale reliabilities, and convergent and discriminant validity was sought for the proposed eight facets of the exercise motivation construct. These facets included amotivation, external regulation, introjected regulation, identified regulation, integrated regulation, intrinsic motivation to learn, intrinsic motivation to accomplish things, and intrinsic motivation to experience sensation. Results provided adequate evidence for the a priori hypothesized EMS factor structure, and acceptable subscale reliability estimates. Further analyses on the EMS structural relationships revealed a simplex pattern of the self-determination continuum underlying the various motivational orientations assessed by the EMS. Finally, selected antecedents and consequences of exercise motivation showed that the EMS facets had nomological validity and depicted differential relationships with the various antecedents and consequences examined. These results provided initial empirical support for the applicability of self-determination theory in the context of exercise, and suggested a multifaceted approach to the conceptualization of exercise motivation.
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