FACTOR STRUCTURE OF THE YALE-BROWN OBSESSIVE-COMPULSIVE SCALE

The Yale-Brown Obsessive Compulsive Scale (Y-BOCS) is one of the most widely used measures of obsessive-compulsive disorder (OCD) symptoms ( W. K. Goodman et al., 1989). The purpose of this study was to examine the dimensions underlying the Y-BOCS by performing a confirmatory fact or analysis of the scale using responses from a large sample of patien ts. The results support a 2-factor model of OCD symptoms. The first fa ctor reflected the degree of disturbance caused by OCD symptoms, and t he second factor reflected the severity of OCD symptoms.