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The factor structure of the eating disorders inventory
Journal of Clinical Psychology
|January 1, 1988
Summary
The Eating Disorders Inventory (EDI) shows promise for assessing eating disorder traits. Factor analysis revealed three reliable factors, suggesting potential clinical utility for screening and treatment monitoring.
Area of Science:
- Psychometrics
- Clinical Psychology
- Eating Disorder Research
Background:
- The Eating Disorders Inventory (EDI) is a widely used tool for assessing cognitive and behavioral aspects of anorexia nervosa and bulimia.
- The original eight-subscale structure of the EDI has not been empirically validated for replicability.
Purpose of the Study:
- To evaluate the psychometric properties and factor structure of the Eating Disorders Inventory (EDI).
- To determine the replicability of the EDI's subscales using factor analysis.
Main Methods:
- Factor analysis was performed on responses from a non-patient sample.
- The FACTOREP procedure was utilized to analyze the EDI data.
Main Results:
- The original eight subscales of the EDI were not confirmed by the factor analysis.
- Three distinct and replicable factors emerged from the analysis of non-patient responses.
Conclusions:
- The findings suggest that the EDI may possess a more robust three-factor structure.
- These identified factors could serve as valuable preliminary screening tools for eating disorders.
- The factors may also be useful as indicators of treatment response, pending further validation.