title: The question of therapists' differential effectiveness. A Sheffield Psychotherapy Project addendum.
abstract: Further analysis of outcome data from the Sheffield Psychotherapy Project suggested that one of the principal therapists was responsible for most of the reported advantage of Prescriptive over Exploratory treatment.
authors.affiliation: Department of Psychology, University of Sheffield.
authors.forename: D A
authors.initials: DA
authors.lastname: Shapiro
authors.forename: J
authors.initials: J
authors.lastname: Firth-Cozens
authors.forename: W B
authors.initials: WB
authors.lastname: Stiles
mesh_terms: D000328:Adult; D001521:Behavior Therapy / Q000379:methods*; D015928:Cognitive Behavioral Therapy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000628:therapy*; D008875:Middle Aged; D010556:Personality Tests; D011575:Psychoanalytic Therapy / Q000379:methods*; D016032:Randomized Controlled Trials as Topic