title: Yale-Brown Obsessive Compulsive Scale: the dimensional structure revisited.
abstract: The factor structure of the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) has been examined in a number of prior investigations; however, findings have not consistently yielded a stable factor solution. The present study therefore tested the fit of each previously reported factor structure. One hundred thirty-one adults with obsessive-compulsive disorder (OCD) were administered the Y-BOCS; a portion of these participants completed self-report measures of depression and obsessive-compulsive symptoms and were rated on a global impairment index. Consistent with the originally proposed structure, confirmatory factor analyses supported a factor structure comprised of obsession and compulsion factors. Reliability and convergent validity of these factors were generally satisfactory, although divergent validity was not entirely supported. Implications of these findings on scoring the Y-BOCS are discussed.
authors.affiliation: Department of Pediatrics, University of Florida, Gainesville, Florida 32610, USA. estorch@psychiatry.ufl.edu
authors.forename: Eric A
authors.initials: EA
authors.lastname: Storch
authors.forename: Nathan Andrew
authors.initials: NA
authors.lastname: Shapira
authors.forename: Eleni
authors.initials: E
authors.lastname: Dimoulas
authors.forename: Gary R
authors.initials: GR
authors.lastname: Geffken
authors.forename: Tanya K
authors.initials: TK
authors.lastname: Murphy
authors.forename: Wayne K
authors.initials: WK
authors.lastname: Goodman
mesh_terms: D000293:Adolescent; D000328:Adult; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis*; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires