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Obesity Surgery
Published in: Obesity Surgery 5/2013

01-05-2013 | Original Contributions

Eating Disorder Examination-Questionnaire Factor Structure and Construct Validity in Bariatric Surgery Candidates

Authors: Carlos M. Grilo, Kathryn E. Henderson, Robert L. Bell, Ross D. Crosby

Published in: Obesity Surgery | Issue 5/2013

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Abstract

Background

The Eating Disorder Examination-Questionnaire (EDE-Q) is increasingly used in studies with bariatric surgery patients although little is known about psychometric properties of this self-report measure in this clinical group. The current study evaluated the factor structure and construct validity of the EDE-Q in bariatric surgery candidates.

Methods

Participants were a consecutive series of 174 obese bariatric surgery candidates who completed the EDE-Q and a battery of behavioral and psychological measures.

Results

Confirmatory factor analysis (CFA) revealed an inadequate fit for the original EDE-Q structure but revealed a good fit for an alternative structure suggested by recent research with obese samples. CFA supported a seven-item, three-factor structure; the three factors were interpreted as dietary restraint, shape/weight overvaluation, and body dissatisfaction. The three factors converged with other relevant collateral measures.

Conclusions

These factor analytic findings, which replicate recent findings from studies with diverse obese samples, demonstrated convergent validity. Implications of these findings for clinical assessment and research with bariatric surgery patients are discussed.
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Metadata
Title
Eating Disorder Examination-Questionnaire Factor Structure and Construct Validity in Bariatric Surgery Candidates
Authors
Carlos M. Grilo
Kathryn E. Henderson
Robert L. Bell
Ross D. Crosby
Publication date
01-05-2013
Publisher
Springer-Verlag
Published in
Obesity Surgery / Issue 5/2013
Print ISSN: 0960-8923
Electronic ISSN: 1708-0428
DOI
https://doi.org/10.1007/s11695-012-0840-8

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