Shapiro, D A Meta-analysis of comparative therapy outcome studies: a replication and refinement. [electronic resource] - Psychological bulletin Nov 1982 - 581-604 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0033-2909 Subjects--Topical Terms: Behavior Therapy--methodsHumansMental Disorders--therapyOutcome and Process Assessment, Health CarePsychotherapy--methodsStatistics as Topic