The Eating Disorder Diagnostic Scale: psychometric features within a clinical population and a cut-off point to differentiate clinical patients from healthy controls

Eur Eat Disord Rev. 2012 Jul;20(4):315-20. doi: 10.1002/erv.1144. Epub 2011 Aug 1.


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.

MeSH terms

  • Anorexia Nervosa / diagnosis
  • Anorexia Nervosa / psychology
  • Binge-Eating Disorder / diagnosis
  • Binge-Eating Disorder / psychology
  • Body Image
  • Bulimia Nervosa / diagnosis
  • Bulimia Nervosa / psychology
  • Feeding and Eating Disorders / diagnosis*
  • Feeding and Eating Disorders / psychology
  • Female
  • Humans
  • Psychiatric Status Rating Scales* / standards
  • Psychometrics
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Young Adult