Validation of the Chinese version of obsessive-compulsive inventory-revised

• Published in: East Asian archives of psychiatry Vol. 29; no. 4; pp. 103 - 111
• Main Authors: Hon, S K H, Siu, B W M, Cheng, C W, Wong, W C W, Foa, E B
• Format: Journal Article
• Language: English
• Published: Hong Kong Hong Kong College of Psychiatrists 01-12-2019; Hong Kong Academy of Medicine
• Subjects: Adult; Anxiety; Approximation; Correlation (Statistics); Factor Analysis, Statistical; Female; Focus groups; Hoarding disorder; Hong Kong; Humans; Language; Male; Mean square errors; Medical screening; Mental depression; Middle Aged; Neuroses; Obsessive compulsive disorder; Obsessive-Compulsive Disorder - diagnosis; Patients; Psychiatric Status Rating Scales - standards; Psychiatric Status Rating Scales - statistics & numerical data; Psychiatry; Psychometrics; Quantitative psychology; Questionnaires; Reliability; Reproducibility of Results; Self Report; Severity of Illness Index; Translating; Treatment; Validation studies; Validation therapy; Validity; Hong Kong; China; Hong Kong China; United States > US; Obsessive-compulsive disorder; Validation studies
• DOI: 10.12809/eaap1832
• EISSN: 2224-7041
• ISSN: 2078-9947

"Background: The Obsessive-Compulsive Inventory-Revised (OCI-R) is a psychometrically sound and valid self-report measure for evaluating the severity of six dimensions of obsessive-compulsive symptoms: washing, obsessing, hoarding, ordering, checking, and neutralising. We aimed to validate the Chinese version of the OCI-R (C-OCI-R) in patients with obsessive-compulsive disorder (OCD) in Hong Kong.
Methods: The C-OCI-R was forward and backward translated and reviewed by an expert panel and a focus group. The internal consistency and test-retest reliability (2-week interval) were examined. Confirmatory factor analysis was used to examine the construct validity of the C-OCI-R. Concurrent validity was examined by the correlation between the C-OCI-R and the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS), whereas divergent validity was examined by the correlation of the C-OCI-R with the Beck Depression Inventory-Second Edition and the Hamilton Depression Rating Scale.
Results: 130 OCD patients were recruited. The C-OCI-R showed excellent internal consistency (Cronbach's alpha = 0.92) and test-retest reliability (Spearman's rho correlation coefficient = 0.96). The original six-factor model was supported by confirmatory factor analysis. Concurrent validity and divergent validity were established. However, the neutralising subscale may need further development, and the divergent validity of the obsessing subscale was unsatisfactory. The structure of OCD symptoms was similar in Chinese and western patients.
Conclusion: The C-OCI-R is a valid and reliable measure for assessing the severity of obsessive-compulsive symptoms in local Chinese patients with OCD."