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Temporal stability of the Eating Disorder Examination Questionnaire

Citation

Mond, JM and Hay, P and Rodgers, B and Owen, C and Beumont, PJ, Temporal stability of the Eating Disorder Examination Questionnaire, International Journal of Eating Disorders, 36, (2) pp. 195-203. ISSN 0276-3478 (2004) [Refereed Article]

Copyright Statement

Copyright 2004 by Wiley Periodicals, Inc.

DOI: doi:10.1002/eat.20017

Abstract

Objectives: The current study examined the stability and internal consistency of the Eating Disorder Examination Questionnaire (EDE-Q) in a general population sample.

Methods: The EDE-Q was administered to a community sample of women aged 18–45 on two occasions, with a median test-retest interval of 315.0 days.

Results: Pearson correlations between items of the EDE-Q assessing attitudinal features of eating disorder psychopathology ranged from 0.57 for the Restraint subscale to 0.77 for the Eating Concern subscale. The stability of items addressing eating disorder behaviors was much lower, with phi coefficients for the occurrence of objective bulimic episodes, subjective bulimic episodes, and use of exercise as a compensatory behavior of 0.44, 0.24, and 0.31, respectively, and Kendall’s tau b correlations of 0.44, 0.28, and 0.31, respectively, for the frequency of these behaviors, across occasions. The internal consistency of the EDE-Q was high, with a Cronbach alpha coefficient for the global scale of 0.93, compared with a value of 0.90 for the Eating Disorder Examination interview.

Discussion: Items of the EDE-Q assessing attitudinal features of eating disorder psychopathology demonstrate a high degree of temporal stability, whereas the stability of items addressing eating disorder behaviors is much lower. In the case of compensatory eating disorder behaviors, low stability is likely to reflect actual trait variation, whereas the low stability of binge eating behaviors, in particular subjective bulimic episodes, is likely to reflect both trait variation and measurement error. The high internal consistency of EDE-Q items supports its use as a screening instrument in two-phase epidemiologic studies.

Item Details

Item Type:Refereed Article
Keywords:EDE-Q, Temporal stability, Reliability
Research Division:Medical and Health Sciences
Research Group:Public Health and Health Services
Research Field:Mental Health
Objective Division:Health
Objective Group:Public Health (excl. Specific Population Health)
Objective Field:Mental Health
Author:Mond, JM (Dr Jon Mond)
ID Code:117983
Year Published:2004
Web of Science® Times Cited:145
Deposited By:Centre for Rural Health
Deposited On:2017-06-29
Last Modified:2017-11-24
Downloads:0

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