The Validity and Reliability of the Turkish Version of the Obsessive Beliefs Questionnaire-44 (obq-44)

Abstract

Objective: Cognitive factors have a central place in the etiology and persistence of obsessive-compulsive disorder (OCD). The aim of the study was to evaluate psychometric properties of the Turkish version of the Obsessive Beliefs Questionnaire-44 (OBQ-44). Original factor structure of the OBQ-44 and discrimination characteristic of the instrument between OCD patients and nonclinical population were evaluated extensively in Turkish sample. Methods: Data were collected from 175 healthy subjects and 62 patients with OCD who applied to the Psychiatry Clinic at Yuzuncu Yil University. Subjects were administered the SCID-I, the Obsessive Beliefs Questionnaire-44 (OBQ-44), the Padua Inventory (PI-41), the Yale-Brown Obsessive Compulsive Scale (Y-BOKS), the Metacognitions Questionnaire-30 (MCQ-30), the Thought Action Fusion Scale (TAFS), the White Bear Suppression Inventory (WBSI), the Penn Inventory of Scrupulosity (PIOS), the Penn State Worry Questionnaire (PSWQ), and the Beck Depression Inventory (BDI). Data were analyzed in order to evaluate the reliability and validity of the OBQ-44. Results: The three-factor original structure tested using confirmatory factor analysis was observed to be highly consistent with the data obtained from the study. OCD patients reported significantly higher scores on OBQ-44 rather than controls. Correlations of the OBQ-44 scores with psychological variables were generally significant. Inner consistency coefficient for the OBQ-44 was alpha 0,95 and test-retest correlation between two points at 30-day time course was r=0.79. Conclusion: The Turkish version of the OBQ-44 has adequate validity and reliability in clinical and nonclinical Turkish sample.(Archives of Neuropsychiatry 2010;47:216-22)