Title: Applying the model of goal-directed behavior, including descriptive norms, to physical activity intentions: A contribution to improving the theory of planned behavior
Citation: PSYCHOLOGICAL REPORTS vol. 119 no. 1 p. 5-26
Publication Year: 2016
JRC N°: JRC101992
ISSN: 0033-2941
URI: http://prx.sagepub.com/content/early/2016/06/07/0033294116649576
DOI: 10.1177/0033294116649576
Type: Articles in periodicals and books
Abstract: The theory of planned behaviour (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 behaviour (MGDB, which adds desire and anticipated positive and negative emotions) applied to physical activity (PA) intention. We also test the inclusion of a descriptive norm 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.
JRC Directorate:Growth and Innovation

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