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Psychol Rep. 2016 Aug;119(1):5-26. doi: 10.1177/0033294116649576. Epub 2016 May 26.

Applying the Model of Goal-Directed Behavior, Including Descriptive Norms, to Physical Activity Intentions: A Contribution to Improving the Theory of Planned Behavior.

Author information

1
Institute for Prospective Technological Studies, Joint Research Centre, European Commission, Sevilla, Spain.
2
Institute for Prospective Technological Studies, Joint Research Centre, European Commission, Sevilla, Spain rene.van-bavel@ec.europa.eu.
3
Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, USA.

Abstract

The theory of planned behavior (TPB) has received its fair share of criticism lately, including calls for it to retire. We contribute to improving the theory by testing extensions such as the model of goal-directed behavior (MGDB, which adds desire and anticipated positive and negative emotions) applied to physical activity (PA) intention. We also test the inclusion of a descriptive norms construct as an addition to the subjective norms construct, also applied to PA, resulting in two additional models: TPB including descriptive norms (TPB + DN) and MGDB including descriptive norms (MGDB + DN). The study is based on an online survey of 400 young adult Internet users, previously enrolled in a subject pool. Confirmatory factor analysis (CFA) showed that TPB and TPB + DN were not fit for purpose, while MGDB and MGDB + DN were. Structural equation modelling (SEM) conducted on MGDB and MGDB + DN showed that the inclusion of descriptive norms took over the significance of injunctive norms, and increased the model's account of total variance in intention to be physically active.

KEYWORDS:

attitudes; structural equation modelling; subjective norms; young adults

PMID:
27229344
DOI:
10.1177/0033294116649576
[Indexed for MEDLINE]

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