title: The Chinese version of the Obsessive-Compulsive Inventory-Revised scale: replication and extension to non-clinical and clinical individuals with OCD symptoms.
abstract: BACKGROUND
  The Obsessive-Compulsive Inventory-Revised (OCI-R) was designed to evaluate the severity of obsessive-compulsive symptoms in both clinical and non-clinical samples. The aim of the study was to evaluate the psychometric properties of a Chinese version of this scale.
  
  
  METHODS
  The Chinese version of the OCI-R was administered to both a non-clinical sample (209 undergraduate students) and a clinical sample (56 obsessive-compulsive disorder (OCD) patients). Confirmatory factor analysis was conducted to examine the construct validity of the OCI-R in the non-clinical sample. The internal consistency at baseline and test-retest reliabilities at 4-week interval was examined in both the non-clinical and clinical samples.
  
  
  RESULTS
  The confirmatory factor analysis of the non-clinical sample confirmed a 6-factor model suggested by the original authors of the instrument (df = 120, RMSEA = 0.068, CFI = 0.88, NNFI = 0.85, GFI = 0.89). The internal consistency and test-retest reliability were at an acceptable range for both the non-clinical and clinical samples. The OCI-R also showed good clinical discrimination for patients with OCD from healthy controls.
  
  
  CONCLUSIONS
  The Chinese version of the OCI-R is a valid and reliable instrument for measuring OCD symptoms in the Chinese context.
authors.affiliation: Department of Maternal and Child Health, school of Public Health, Sun Yat-Sen University, Guangzhou, China.
authors.forename: Zi-wen
authors.initials: ZW
authors.lastname: Peng
authors.forename: Wen-han
authors.initials: WH
authors.lastname: Yang
authors.forename: Guo-dong
authors.initials: GD
authors.lastname: Miao
authors.forename: Jin
authors.initials: J
authors.lastname: Jing
authors.forename: Raymond C K
authors.initials: RC
authors.lastname: Chan
mesh_terms: D000328:Adult; D044466:Asian People / Q000523:psychology*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / Q000523:psychology*; D011237:Predictive Value of Tests; D011594:Psychometrics; D015203:Reproducibility of Results; D012720:Severity of Illness Index