Predicting intention and behaviour following participation in a theory-based intervention to improve gluten free diet adherence in coeliac disease

Psychology & Health
Kirby SainsburyLouise Sharpe

Abstract

To determine whether changes in theory of planned behaviour (TPB) constructs could predict intention and gluten-free diet (GFD) adherence following participation in an online theory-based intervention designed to improve adherence in coeliac disease. Theory-based process evaluation of the mechanisms of change over the course of a six-week online intervention. Measures of GFD adherence and TPB variables were administered at baseline and follow-up (immediate post-intervention: n = 74; three-month: n = 68; six-month: n = 65). Hierarchical regression analyses using residualised change scores were conducted at each time point (dependent variables: intention and adherence). Baseline intention and GFD adherence were the strongest predictors of follow-up intention and adherence, respectively. Change in attitude accounted for significant variance in intention. Change in intention accounted for significant variance in GFD adherence immediately post-intervention; by the six-month follow-up change in perceived behavioural control was the stronger predictor. Partial support for the hypotheses suggests that, for certain behaviours, the TPB may be relevant in explaining the mechanism of action responsible for changes in intention and behaviou...Continue Reading

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Citations

May 20, 2016·Journal of Human Nutrition and Dietetics : the Official Journal of the British Dietetic Association·A M MaddenL Knowles
Jan 12, 2019·The Proceedings of the Nutrition Society·H MuhammadY M Jeanes
Oct 15, 2019·Psychology & Health·Ricardo Fueyo-DíazJuan J Sebastián-Domingo
Jun 19, 2020·Journal of Diabetes and Metabolic Disorders·Tintin SukartiniHidayat Arifin
Feb 20, 2020·International Journal of Behavioral Medicine·Caitlin LiddelowElizaveta Novoradovskaya
Aug 18, 2018·The International Journal of Behavioral Nutrition and Physical Activity·René LionPeter Schmidt

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