• The Yale-Brown Obsessive Compulsive Scale was designed to remedy the problems of
existing rating scales by providing a specific measure of the severity of symptoms of
obsessivecompulsive disorder that is not influenced by the type of obsessions or
compulsions present. The scale is a clinician-rated, 10-item scale, each item rated from 0
(no symptoms) to 4 (extreme symptoms)(total range, 0 to 40), with separate subtotals for
severity of obsessions and compulsions. In a study involving four raters and 40 patients with …