Comparison of the health belief model and the theory of planned behaviour in prediction of dieting and fasting behaviour

L Nejad; E Werheim; Ken Greenwood

doi:10.7790/ejap.v1i1.10

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Comparison of the health belief model and the theory of planned behaviour in prediction of dieting and fasting behaviour

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Comparison of the health belief model and the theory of planned behaviour in prediction of dieting and fasting behaviour

L Nejad, E Werheim and Ken Greenwood

E-Journal of Applied Psychology, Vol.1(1), pp.63-74

2005

DOI: https://doi.org/10.7790/ejap.v1i1.10

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Abstract

Clinical Sciences

Psychology

The Theory of Planned Behavior (TPB), the Health Belief Model (HBM), and a modified HBM including intention were compared in their ability to predict dieting and fasting. Female university students (n = 373) completed a survey assessing variables from the TPB and the HBM. Three months later, a subsample reported subsequent weight loss behaviors. The TPB predictor model explained 35% of the variance in follow-up dieting and 67% in intention. The HBM model explained 29% of the variance in follow-up dieting and the modified HBM model explained 38% of the variance in follow-up dieting and 57% in intention.. The TPB model for fasting explained 14.5% of the variance in follow-up fasting and 58% in intention. The modified HBM model explained 19% of the variance in follow-up fasting and 41% in intention. Results show all models were able to predict a significant portion in the variance of dieting and fasting follow-up behavior; however the variance explained in follow-up fasting increased when intention was added to the HBM model. Attitude measures were the strongest predictors of behavioural intention and intention was the strongest predictor of follow-up dieting and fasting in the TPB and modified HBM models. Theoretical and clinical implications are discussed.

Details

Title: Comparison of the health belief model and the theory of planned behaviour in prediction of dieting and fasting behaviour
Authors: L Nejad (Author) - Dandenong Area Mental Health Service
E Werheim (Author) - La Trobe University
Ken Greenwood (Author) - La Trobe University
Publication details: E-Journal of Applied Psychology, Vol.1(1), pp.63-74
Publisher: Swinburne University of Technology
Date published: 2005
DOI: 10.7790/ejap.v1i1.10
ISSN: 1832-7931; 1832-7931
Organisation Unit: School of Social Sciences - Legacy; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99450746802621
Output Type: Journal article
Research Statement: false

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