The Application of the Theory of Planned Behaviour to Diet in Carers of People with an Intellectual Disability

Catherine Jenkins, Karen McKenzie

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)
3 Downloads (Pure)

Abstract

Background - The utility of the theory of planned behaviour (TPB) in predicting the intentions of care staff to encourage healthy eating behaviour in those they supported was examined. Method - A quantitative, within-participant, questionnaire based design was used with 112 carers to assess the performance of two TPB models. The first contained the variables: attitude, subjective norm and perceived behavioural control. The second had additional variables of self efficacy and self identity. Results - Model 1 accounted for 31% of the variance with all three variables being significant predictors. Adding variables increased the overall predictive power of the model by 4%, but resulted in a reduction in the predictive power of the individual variables. Conclusion - The results suggests the TPB is a useful model for predicting carer intentions in relation to the diet of those they support, with their perceptions of the attitudes of others towards healthy eating being a key influential factor. Ways in which this may inform interventions to improve the overall health of people with intellectual disabilities are discussed.
Original languageEnglish
Pages (from-to)237-246
JournalJournal of Applied Research in Intellectual Disabilities
Volume24
Issue number3
DOIs
Publication statusPublished - May 2011

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