Reliability and validity of the Yale-Brown Obsessive-Compulsive Scale in schizophrenia patients.
Although a sizeable minority of people with schizophrenia manifest obsessive and compulsive symptoms, to our knowledge there are no studies of the psychometric performance of measures such as the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS). The present study examined psychometric properties of the Y-BOCS in patients with recent-onset schizophrenia and comorbid obsessive-compulsive symptoms (OCS). To 37 patients with recent-onset schizophrenia and related disorders and comorbid OCS taken from 135 consecutively admitted patients we administered the Y-BOCS at admission and 6 weeks later. The Y-BOCS showed good internal consistency and interrater reliability in this population; however, findings concerning the divergent validity against depressive and negative symptoms are inconsistent.
de Haan
Lieuwe
L
Academic Medical Center, Depatment of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands. l.dehaan@amc.uva.nl
Hoogeboom
Britt
B
Beuk
Nico
N
Wouters
Luuk
L
Dingemans
Peter M A J
PM
Linszen
Don H
DH
D000293:Adolescent; D000328:Adult; D015897:Comorbidity; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009426:Netherlands; D015588:Observer Variation; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D010552:Personality Assessment / Q000706:statistics & numerical data*; D011446:Prospective Studies; D011594:Psychometrics / Q000706:statistics & numerical data; D011618:Psychotic Disorders / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D015203:Reproducibility of Results; D012559:Schizophrenia / Q000175:diagnosis* / Q000453:epidemiology; D012565:Schizophrenic Psychology