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Testing social cognitive mechanisms of exercise in college students
Daniel R Taber1, Hendrika Meischke, Matthew L Maciejewski
1Department of Epidemiology, University of North Carolina-Chapel Hill, NC 27599-7435, USA. dtaber@email.unc.edu
Objectives:
To determine if different dimensions of outcome expectations are mediators between self-efficacy and exercise among college students.
Methods:
Students (n = 290) reported exercise levels, self-efficacy, and expectations using a Web-based questionnaire. Factor analysis was performed to identify dimensions of expectations; regression analyses tested whether each factor mediated the relationship between self-efficacy and exercise.
Results:
Physical, mental, social, and self-evaluative expectations emerged from the factor analysis, but none was associated with exercise independent of self-efficacy. Self-efficacy, however, was significantly associated with exercise independent of expectations (P < 0.01).
Conclusions:
College students' activity expectations are multidimensional, but do not mediate the relationship between self-efficacy and exercise.
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