| he entire Transtheoretical Model, consisting of stages of change, processes of change, self-efficacy, and decisional balance, was tested for its applicability to an adolescent population. In addition, Godin's Leisure-Time Exercise Questionnaire was used to validate the stages of change measure. Students (n = 819) from five community high schools (grades 9-12) completed self-administered questionnaires of all constructs. Distribution of the sample across the stages was: Precontemplation n = 17 (2.1%); Contemplation n = 34 (4.2%): Preparation n = 235 (28.7%); Action n = 129 (15.7%); and Maintenance n = 404 (49.3%). Univariate ANOVAs (p... |
