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Plotnikoff, Ronald C.; Lubans, David R.; Costigan, Sarah A.; McCargar, Linda – Health Education & Behavior, 2013
Purpose: To examine the utility of the theory of planned behavior (TPB) for explaining physical activity (PA) intention and behavior among a large population sample of overweight and obese adolescents (Alberta, Canada), using a web-based survey. Secondary objectives were to examine the mediating effects of the TPB constructs and moderating effects…
Descriptors: Foreign Countries, Obesity, Behavior Theories, Physical Activity Level
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Myklestad, Ingri; Rise, Jostein – Health Education & Behavior, 2007
This article examines the sociocognitive processes contributing to intention to use contraception and willingness to engage in unsafe sex, using extended versions of the theory of planned behavior (TPB) and the Prototype/Willingness model (Gibbons & Gerrard, 1995, 1997). Data were obtained from a questionnaire delivered to all the pupils in…
Descriptors: Gender Differences, Self Efficacy, Intention, Multiple Regression Analysis