Extending the theory of planned behavior: predicting transportation mode choices
Date
2000
Authors
Heath, Yuko
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Abstract
A modified version of the theory of planned behavior was used in order to explain and predict students' transportation mode choices. This study employed a longitudinal design to examine changes in students' transportation mode choices occurred after the U-pass program implementation at the University of Victoria. A total of 387 questionnaires were collected in Phase I (before the U-pass implementation), and 175 in Phase 2 (two months after the implementation). In both phases, hierarchical multiple regression analyses showed that students' transportation mode choices were moderately well predicted by the theory of planned behavior, and that some variables added to the original theory explained variance over and above the original constructs in the theory. Moreover, both changes in transportation mode choices and changes in psychological variables were observed between Phase 1 and 2. Implications of these results to other intervention programs are discussed.