Predicting adolescent eating and activity behaviors: the role of social norms and personal agency.
Guided by the theory of planned behavior, this 2-week longitudinal study examined health behaviors in a sample of 279 adolescents. Social norms and perceived behavioral control (PBC) were tested as predictors of self-reported intentions and behaviors in 2 domains, eating and physical activity. Differentiating, as opposed to aggregating, parent and peer norms provided unique information. For PBC, the authors distinguished global causality beliefs from self-related agency beliefs and intraself (effort, ability) from extraself (parents, teachers) means. Intraself agency beliefs strongly predicted healthy intentions, whereas intraself causality beliefs had a negative influence. Patterns differed somewhat across behaviors and gender. Results highlight theoretical issues and provide potential targets for research on health promotion programs for youth.
Baker
Christina Wood
CW
Department of Psychology, Yale University, USA. cbaker4@partners.org
Little
Todd D
TD
Brownell
Kelly D
KD
D000293:Adolescent; D005247:Feeding Behavior; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D033182:Intention; D008297:Male; D009043:Motor Activity; D009765:Obesity / Q000517:prevention & control; D011446:Prospective Studies; D015203:Reproducibility of Results; D020377:Self Efficacy; D012919:Social Behavior; D011795:Surveys and Questionnaires