Understanding the link between body image and binge eating: a model comparison approach
Millicent Holmes1, Matthew Fuller-Tyszkiewicz, Helen Skouteris
1School of Psychology, Deakin University, 221 Burwood Highway, Burwood, VIC, 3125, Australia.
Eating and Weight Disorders : EWD
|August 3, 2014
Summary
The dual pathway model best explains the link between body dissatisfaction and binge eating, identifying dietary restraint and negative affect as key mediators. Further research is needed to explore other contributing factors.
Area of Science:
- Psychology
- Eating Disorders
- Behavioral Science
Background:
- Body dissatisfaction is a known precursor to binge eating.
- Several theoretical models attempt to explain this relationship, including the dual pathway model, escape from awareness, and objectification theory.
Purpose of the Study:
- To compare the explanatory power of the dual pathway, escape from awareness, and objectification theory models for the link between body dissatisfaction and binge eating.
- To identify key mediating factors in this relationship.
Main Methods:
- A survey was completed by 408 women (aged 18-40).
- The survey assessed proposed mediators: dietary restraint, negative affect (dual pathway), self-distraction (escape from awareness), and interoceptive deficits (objectification theory).
Main Results:
- Mediation analyses supported both the dual pathway model and objectification theory when tested independently.
- The dual pathway model demonstrated the strongest predictive power for the body dissatisfaction-binge eating relationship.
- Dietary restraint and negative affect uniquely contributed to explaining approximately 25% of the variance, with minimal additional explanation from other mediators.
Conclusions:
- The dual pathway model provides a superior explanation for the body dissatisfaction-binge eating link compared to objectification theory and the escape from awareness model.
- The significant unexplained variance suggests that additional mechanisms may also contribute to this relationship.
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