Skip to main content

Table 5 Concurrent and divergent validity of the QIDS-SR 16 total score

From: Psychometric properties of the self-report version of the Quick Inventory of Depressive Symptoms (QIDS-SR16) questionnaire in patients with schizophrenia

   QIDS-SR16 CDSS PANSS-D
Concurrent validity QIDS-SR16 1   
  CDSS 0.44 (0.38-0.51)** 1  
  PANSS-D 0.47 (0.41-0.54)** 0.59 (0.54-0.64)** 1
Divergent validity PANSS-N 0.28 (0.19-0.35)** 0.34 (0.28-0.41)** 0.40 (0.33-0.47)**
  AIMS 0.09 (0.01-0.16)* 0.06 (−0.01-0.14) 0.06 (−0.02-0.14)
  BARS 0.16 (0.09-0.24)** 0.09 (0.01-0.16)* 0.15 (0.07-0.23)**
  UPDRS-motor 0.13 (0.05-0.21)** 0.20 (0.13-0.28)** 0.25 (0.17-0.33)**
  1. Concurrent validity of the QIDS-SR16 total score with other depression instruments and divergent validity with negative symptoms and extrapyramidal symptoms. Values are Spearman correlation coefficients (95% CI). Significant correlations were indicated by * = p < .05; ** = p < .001.
  2. Abbreviations: QIDS-SR 16 Quick Inventory of Depressive Symptoms 16-item self-report version; CDSS Calgary Depression Scale for Schizophrenia; PANSS Positive and Negative Syndrome Scale, emotional distress subscale (−D) and Negative symptom subscale (−N); AIMS Abnormal and Involuntary Movements Scale; BARS Barnes Akathisia Rating Scale and UPDRS-motor, Motor subscale of the Unified Parkinson’s Disease Rating Scale.