A test of the theory of planned behavior to explain physical activity in a large population sample of adolescents from Alberta, Canada

Ronald C. Plotnikoff, David R. Lubans, Sarah A. Costigan, Linda Trinh, John C. Spence, Shauna Downs, Linda McCargar

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To test the Theory of Planned Behavior (TPB) in a large population sample of adolescents from Alberta, Canada. Methods: 4,073 adolescents completed a self-administered web-based survey related to physical activity (PA). Results: TPB explained 59% and 43% of the variance for intention and behavior, respectively. Moderating (by gender) and mediating tests were supported. Conclusions: TPB is useful for understanding PA in this population.

Original languageEnglish (US)
Pages (from-to)547-549
Number of pages3
JournalJournal of Adolescent Health
Volume49
Issue number5
DOIs
StatePublished - Nov 2011

Keywords

  • Adolescents
  • Gender differences
  • Physical activity
  • Theory of planned behavior
  • Web-based survey

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Public Health, Environmental and Occupational Health
  • Psychiatry and Mental health

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