Reliability and Validitymeasurement of the Obsessive Beliefs Questionnaire: child and adolescent version

The aim of the present research was to study the factorial structure, reliability andvalidity of Obsessive Beliefs Questionnaire – child version (OBQ-CV) in a group of adolescents in Isfahan City.
The sample included 324 none clinical student of Isfahan City which selected randomly and a sample of 15 obsessive compulsive patients aged 14-17 were also filled the questionnaire afterwards. Exploratory factor analyses identified four factors including: 1- Importance/Control of Thoughts, 2-Perfectionism/Certainty, 3-Responsibility and 4- Threat Estimation. Concurrent validity of the OBQ-CV has been studied through correlational analysis with the Children's Yale-Brown Obsessive Compulsive Scale and MOCI.
The results revealedpositive correlations among the OBQ-CV and CY-BOCS, OBQ-CV and MOCI. Also this version showed substantial divergent validity with depression and anxiety measures. Test-retest reliability coefficient of the questionnaire arrived to0/673in two weeks, internal consistency (Cronbach’sAlpha) of 0/81.About possible differences among male and female groupsno significant t-Test measure was found. No significant difference observed for age groupsas well. Instead study ofthe clinical/ nonclinical groupsindicated significant difference between this groups.
The correlation between these four factors indicates appropriate conformity for the OBQ-CV questionnaire and meets the aims of the questionnaire for adolescents. Also it could beconcluded that there are strong link between obsessive-compulsive beliefs and OCD symptoms.