1. The Eating Disorder Diagnostic Scale: Psychometric Features Within a Clinical Population and a Cut-off Point to Differentiate Clinical Patients from Healthy Controls.
- Author
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Krabbenborg, Manon A. M., Danner, Unna N., Larsen, Junilla K., Veer, Nienke, Elburg, Annemarie A., Ridder, Denise T. D., Evers, Catharine, Stice, Eric, and Engels, Rutger C. M. E.
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DIAGNOSIS of eating disorders , *CHI-squared test , *COLLEGE students , *STATISTICAL correlation , *PSYCHOLOGICAL tests , *PSYCHOMETRICS , *QUESTIONNAIRES , *SCALE analysis (Psychology) , *STATISTICS , *T-test (Statistics) , *DATA analysis , *INTER-observer reliability , *RECEIVER operating characteristic curves , *RESEARCH methodology evaluation , *DESCRIPTIVE statistics ,RESEARCH evaluation - Abstract
The Eating Disorder Diagnostic Scale (EDDS) is a brief self-report measure for diagnosing anorexia nervosa, bulimia nervosa and binge eating disorder. Research has provided evidence of the reliability and validity of this scale in non-clinical populations. Our study is the first to examine the psychometric features of the EDDS in a clinical population of eating disordered patients. We identified a cut-off point that differentiates clinical patients from healthy controls. A clinical group of 59 Dutch female eating disordered patients and a control group of 45 Dutch students completed the EDDS, the Eating Disorder Examination Interview, the Body Attitude Test and the Beck Depression Inventory-II. The EDDS showed good test-retest reliability, internal consistency, criterion validity and convergent validity with other scales assessing eating and general pathology. An overall symptom composite cut-off score of 16.5 accurately distinguished clinical patients from healthy controls. The EDDS may be a useful instrument in clinical settings and in aetiologic, prevention and treatment research. Copyright © 2011 John Wiley & Sons, Ltd and Eating Disorders Association. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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