Is the relationship between physical activity intentions and behaviour convex? A test across 13 studies

Chatzisarantis, Nikos L.D., Yli-Piipari, Sami, Schriefer, Lindsey, Wang, Deming, Barkoukis, Vasillis, and Hagger, Martin S. (2019) Is the relationship between physical activity intentions and behaviour convex? A test across 13 studies. Psychology of Sport and Exercise, 43. pp. 114-122.

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Objectives: Previous research documented that the construct of intentions related to physical activity participation by a linear function. As a consequence, researchers using linear analysis tacitly conclude that effects of unfavourable and favourable intentions on physical activity participation are exactly the same. In this study, we examined whether favourable and unfavourable intentions exerted differential effects on participation in physical activities across 13 published or unpublished studies.

Method: Data consisted of 13 samples sourced from published and unpublished studies.

Results: In partial support of our hypothesis, non-linear analysis revealed that in 7 out of 13 studies intentions predicted physical activity participation when intentions were favourable, but when intentions were unfavourable effects of intentions on physical activity participation were smaller.

Conclusions: The theoretical significance of the present study is that it identifies a new boundary condition for the construct of intentions that delineates the more specific conditions under which intentions are more likely to predict participation in physical activities.

Item ID: 57141
Item Type: Article (Research - C1)
ISSN: 1878-5476
Keywords: physical activity intentions; theories of intentional behavior; non-linear models; physical activity behavior
Copyright Information: Copyright © 2019 Published by Elsevier Ltd. All rights reserved
Date Deposited: 28 May 2019 01:03
FoR Codes: 52 PSYCHOLOGY > 5201 Applied and developmental psychology > 520107 Sport and exercise psychology @ 100%
SEO Codes: 92 HEALTH > 9299 Other Health > 929999 Health not elsewhere classified @ 100%
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