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Eating Disorders Examination (EDE) and Eating Disorders Examination-Questionnaire (EDE-Q)

Brief Description:
• Original EDE was a created by Cooper and Fairburn (1987) however this measure was labour and time intensive and required specialized training to administer.
• Revised to the EDE-Q, a self-report version, by Fairburn and Beglin in 1994.
• EDE (12th revision) is referred to as the gold standard of eating disorder assessment.
• Assesses bulimia nervosa (BN) symptomatology with DSM-IV
• Has a BED (Binge Eating Disorder) version; EDE-Q does not test for BED.
• Four subscales: Dietary restraint, Eating concern, Shape concern and Weight concern
• Distinguishes between subjective and objective bulimic episodes (SBE and OBE)
• Twenty-eight day timeframe; EDE also can be used with a 6 month timeframe (consistent with that needed for a DSM diagnosis)

• English
• Shorter EDE-Q-I (includes two items from the EDE-Q)

Type of Measure:
• EDE is a semi-structured interview; EDE-Q is self-completed
• EDE: 62 items concerned with the previous four weeks, takes 30 minutes to one hour to complete
• EDE-Q: 36 items, takes 15 minutes to complete
• Both scales are rated on a seven-point scale

Target Population:
• Adults
• Adolescents
• There is a version for children (ChEDE)

• Summed score
• Scores of four or higher on key items considered to lie in the clinical range
• Cut-scores of 56 for the EDE-Q


Source References
Binford et al., (2005): 21 adolescents in a research-based eating disorder treatment program at the University of Chicago. Types: BM = bulimia nervosa, PBN = partial-syndrome bulimia nervosa, AN = anorexia nervosa.
• Validity: “moderate to high correlations found on all four subscales within and between types. Discrepancy between the EDE and the EDE-Q was great in BN relative to PBN and AN for the eating concern subscale. 
Objective binge episode (OBE) frequency in BN and subjective binge episode frequency in BN and PBN were higher with the EDE compared with the EDE-Q. Self-induced vomiting was correlated with both measures” (Binford et al., 2005, p. 44). 

Mond et al., (2004): Community sample of 195 women aged 18-45 from Canberra, Australia. Used the EDE and EDE-Q. Note: global scale refers to all subscales combined.
• Validity: Concurrent: discrepancy scores on items between EDE and EDE-Q had a mean of 0.53, positive correlation between discrepancy scores and global EDE-Q (r = 0.49); Criterion: For total sample there was a correlation between BMI (Body Mass Index) and global scores on the EDE-Q (r = 0.26) and EDE (r = 0.17).
• Global EDE-Q, at a score of 2.3, had a sensitivity of 0.92, a specificity of 0.86, and a positive predictive value of 0.30, thus indicating a cut-score of 56.
• Eight EDE-Q items best distinguish cases from non-cases of eating disorder: "frequency of OBEs, use of exercise as a means of weight control, use of self-induced vomiting, use of laxatives, 'guilt about eating', 'social eating', 'discomfort seeing body', and avoidance of exposure" (p. 561).

Utility for prevalence surveys:
• Untested but potentially good

Research Applicability:
• Good

Copyright, Cost, and Source Issues:
• Unavailable

Original reference:
Cooper, Z., & Fairburn, C. (1987). The eating disorder examination: A semi-structured interview for the assessment of the specific psychopathology of eating disorders. International Journal of Eating Disorders, 6(1), 1-8.

Source References:
Binford, R. B., Le Grange, D., & Jellar, C. C. (2005). Eating disorders examination versus eating disorders examination-questionnaire in adolescents with full and partial-syndrome bulimia nervosa and anorexia nervosa. International Journal of Eating Disorders, 37(1), 44-49.

Supporting References:
Mond, J. M., Hay, P. J., Rodgers, B., Owen, C., & Beumont, P. J. V. (2004). Validity of the eating disorder examination questionnaire (EDE-Q) in screening for eating disorders in community samples. Behaviour Research and Therapy, 42, 551-567.

Celio, A. A., Wilfley, D. E., Crow, S. J., Mitchell, J., & Walsh, B. T. (2004). A comparison of the binge eating scale, questionnaire for eating and weight patterns-revised, and eating disorder examination questionnaire with instructions with the eating disorder examination in the assessment of binge eating disorder and its symptoms. International Journal of Eating Disorders, 36(4), 434-444.

• EDE is widely used
• EDE-Q has good potential for epidemiological studies
• DSM-IV conceptualization

• EDE-Q may be better suited for adults than for adolescents
• EDE-Q tends to overestimate binge eating frequency when compared to the EDE