title: Adolescents' physical activities and peer norms: the mediating role of self-efficacy.
abstract: The purpose of the present study was to examine the relations among adolescents' self-efficacy and social norms, and physical activity and whether self-efficacy mediated the relationship between social norms and physical activity. 400 junior high school students (202 boys, 198 girls, 2 not identified; M age = 15.3yr., SD = 0.6) completed a demographic questionnaire, the International Physical Activity Questionnaire (IPAQ), the Perceived Self-Efficacy in Physical Activity Scale, and the Physical Activity Social Norms Scale. Regression analyses indicated that both self-efficacy and social norms predicted physical activity. Self-efficacy fully mediated the relationship between peer norms and physical activity for boys but partially mediated the relationship for girls. An application of the results may be to foster self-efficacy and peer norms as a motivational strategy for supporting increased physical activity.
authors.forename: Frank J H
authors.initials: FJ
authors.lastname: Lu
authors.forename: Ju-Han
authors.initials: JH
authors.lastname: Lin
authors.forename: Ya-Wen
authors.initials: YW
authors.lastname: Hsu
authors.forename: Chien-Chih
authors.initials: CC
authors.lastname: Chou
authors.forename: Erica T W
authors.initials: ET
authors.lastname: Wang
authors.forename: Li-Chin
authors.initials: LC
authors.lastname: Yeh
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D015444:Exercise / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D009042:Motivation; D009043:Motor Activity; D010379:Peer Group; D012044:Regression Analysis; D020377:Self Efficacy; D012737:Sex Factors; D012931:Social Environment; D012944:Social Support; D011795:Surveys and Questionnaires