title: A Psychometric Evaluation of the German Version of the Quick Inventory of Depressive Symptomatology (QIDS-SR16) in Outpatients with Depression.
abstract: BACKGROUND
  The self-rated, 16-item Quick Inventory of Depressive Symptomatology (QIDS-SR16) is a well-established measure of depression severity. This study aimed to evaluate the psychometric properties of the German translation of the QIDS-SR16.
  
  
  METHODS
  332 depressed German adults awaiting psychotherapy were assessed with the German translations of the QIDS-SR16, the Beck Depression Inventory (BDI-II) and the 24-item Hamilton Rating Scale for Depression (HRSD-24).
  
  
  RESULTS
  Internal consistency for the QIDS-SR16 was acceptable (Cronbach's alpha = .77). Corrected item-total correlations indicated adequate discriminatory power of all the items. The QIDS-SR16 highly correlated with the BDI-II (r = .810) but only moderately correlated with the HRSD-24 (r = .581). Regarding discriminant validity, the QIDS-SR16 discriminated between patients with and without a depressive episode but not between patients with and without panic disorder.
  
  
  CONCLUSIONS
  The German translation of the QIDS-SR16 has adequate psychometric properties. Our results support the usefulness of the German version of the QIDS-SR16 as a brief depression rating scale in clinical and research settings.
authors.forename: A
authors.initials: A
authors.lastname: Roniger
authors.forename: C
authors.initials: C
authors.lastname: Späth
authors.forename: U
authors.initials: U
authors.lastname: Schweiger
authors.forename: J P
authors.initials: JP
authors.lastname: Klein
mesh_terms: D000328:Adult; D003863:Depression / Q000175:diagnosis* / Q000523:psychology / Q000628:therapy; D003866:Depressive Disorder / Q000175:diagnosis* / Q000523:psychology / Q000628:therapy; D004522:Educational Status; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D010045:Outpatients; D016584:Panic Disorder / Q000175:diagnosis / Q000523:psychology; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D011613:Psychotherapy; D015203:Reproducibility of Results; D014177:Translations