Development and validation of the Eating Disorder Diagnostic Scale: a brief self-report measure of anorexia, bulimia, and binge-eating disorder.
This article describes the development and validation of a brief self-report scale for diagnosing anorexia nervosa, bulimia nervosa, and binge-eating disorder. Study 1 used a panel of eating-disorder experts and provided evidence for the content validity of this scale. Study 2 used data from female participants with and without eating disorders (N = 367) and suggested that the diagnoses from this scale possessed temporal reliability (mean kappa = .80) and criterion validity (with interview diagnoses; mean kappa = .83). In support of convergent validity, individuals with eating disorders identified by this scale showed elevations on validated measures of eating disturbances. The overall symptom composite also showed test-retest reliability (r = .87), internal consistency (mean alpha = .89), and convergent validity with extant eating-pathology scales. Results implied that this scale was reliable and valid in this investigation and that it may be useful for clinical and research applications.
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Department of Psychology, University of Texas at Austin 78712, USA. stice@psy.utexas.edu
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D000293:Adolescent; D000328:Adult; D000855:Anorexia / Q000175:diagnosis / Q000523:psychology; D002032:Bulimia / Q000175:diagnosis / Q000523:psychology; D001068:Feeding and Eating Disorders / Q000175:diagnosis* / Q000523:psychology*; D005260:Female; D006801:Humans; D006963:Hyperphagia / Q000175:diagnosis / Q000523:psychology; D008875:Middle Aged; D011237:Predictive Value of Tests; D011569:Psychiatric Status Rating Scales / Q000592:standards*; D011594:Psychometrics; D015203:Reproducibility of Results