Consistency between self-report and clinician-administered versions of the Yale-Brown Obsessive-Compulsive Scale.
BACKGROUND
Preliminary efforts to demonstrate the utility of a self-rated version of the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) have been promising; however, earlier reports are based on small clinical samples. The objective of the present study was to evaluate the level of agreement between the clinician-administered Y-BOCS and a self-report version.


METHODS
Participants included 86 individuals with a principal diagnosis of obsessive-compulsive disorder (OCD). All participants were given the self-report version of the Y-BOCS to complete offsite and instructed to return it at a second assessment session (within a 2-week time frame), at which time a trained and experienced clinician administered the Y-BOCS interview.


RESULTS
The two versions were moderately correlated with the highest correlation observed for the Compulsions subscale. Comparison of scores for individual items revealed several inconsistencies between the two measures: level of agreement was low for resistance items, and the interview version generated higher compulsion severity ratings.


CONCLUSIONS
The study provided moderate support for the convergence of the self-report and clinician-administered version of the Y-BOCS, however, important difference were detected between the two assessment methods.
Federici
Anita
A
Cleveland Center for Eating Disorders, Cleveland, Ohio, United States. afederici@edcleveland.org
Summerfeldt
Laura J
LJ
Harrington
Jennifer L
JL
McCabe
Randi E
RE
Purdon
Christine L
CL
Rowa
Karen
K
Antony
Martin M
MM
D000328:Adult; D001008:Anxiety Disorders / Q000175:diagnosis* / Q000523:psychology; D003192:Compulsive Behavior / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009770:Obsessive Behavior / Q000175:diagnosis* / Q000523:psychology; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics / Q000379:methods*; D015203:Reproducibility of Results; D012647:Self-Assessment; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires