Psychometric evaluation of a parent-rating and self-rating inventory for pediatric obsessive-compulsive disorder: German OCD Inventory for Children and Adolescents (OCD-CA).

ABSTRACT: Background:This study assesses the psychometric properties of the German version of the Padua Inventory-Washington State University Revision for measuring pediatric OCD. Methods:The parent-rating and self-rating inventory is assessed in a clinical sample (CLIN: n?=?342, age range?=?6-18 years) comprising an OCD subsample (OCDS: n?=?181) and a non-OCD clinical subsample (non-OCD: n?=?161), and in a community sample (COS: n?=?367, age range?=?11-18 years). Results:An exploratory factor analysis yielded a four-factor solution: (1) Contamination & Washing, (2) Catastrophes & Injuries, (3) Checking, and (4) Ordering & Repeating. Internal consistencies of the respective scales were acceptable to excellent across all samples, with the exception of the self-report subscale Ordering and Repeating in the community sample. The subscales correlated highly with the total score. Intercorrelations between the subscales were mainly r???.70, indicating that the subscales were sufficiently independent of each other. Convergent and divergent validity was supported. Participants in the OCD subsample scored significantly higher than those in the non-OCD clinical subsample and the COS on all scales. In the COS, self-rating scores were significantly higher than parent-rating scores on all scales, while significant mean differences between informants were only found on two subscales in the OCD subsample. Conclusion:The German version of the Padua Inventory-Washington State University Revision for measuring pediatric OCD is a promising, valid and reliable instrument to assess self-rated and parent-rated pediatric OCD symptoms in clinical and non-clinical (community) populations.

SUBMITTER: Adam J 

PROVIDER: S-EPMC6582526 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature