Intention stability assessed using residual change scores moderates the intention-behaviour association: a prospective cohort study

Psychology, Health & Medicine
Alicia A RowanMark S Allen

Abstract

Intention stability is considered to be one of the key pre-requisites for a strong association between intention and behaviour. It has been claimed, however, that studies examining the moderating impact of intention stability may be invalid, as they have relied on statistically inferior methods. Residual change scores have been suggested as a more appropriate method of measuring change (or lack thereof) in constructs. The aim of the current study, therefore, is to test whether intention stability, calculated using residual change scores, moderates the intention-physical activity behaviour association. A total of 163 participants (124 women, 39 men) completed questionnaires online at three time points separated by 14 day intervals. The moderating impact of intention stability was assessed using multiple linear regression followed up using simple slope analyses to identify the direction of any effect. The interaction of intention and intention stability was found to significantly improve the overall model fit. Intentions had a stronger positive association with behaviour when intentions were more stable than when they were more unstable. However, sensitivity analyses revealed that the association was not robust and reduced to non...Continue Reading

References

Jul 27, 2004·Personality & Social Psychology Bulletin·Paschal Sheeran, Charles Abraham
Mar 6, 2008·Preventive Medicine·Judith J ProchaskaJames O Prochaska
Mar 6, 2015·Health Psychology Review·Falko F SniehottaVera Araújo-Soares

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Citations

Jan 7, 2021·Psychology & Health·Hanna Kalajas-TilgaMartin S Hagger
Jul 8, 2021·Annals of Behavioral Medicine : a Publication of the Society of Behavioral Medicine·Ryan E RhodesReza Sayar

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