The comparative effectiveness of various psychiatric rehabilitation procedures on posthospital adjustment was surveyed using the outcome criteria of hospital recidivism and posthospital employment. The percentage of psychiatric patients who receive the traditional hospital regimen of drug treatment, and perhaps some form of individual or group therapy, and who are able to remain out of the hospital or find employment was established as a base line against which the unique effects of rehabilitation procedures could be evaluated. Several of the conclusions that evolved out of the survey are as follows: (a) Most all types of inpatient treatment innovations improve the patients' in-hospital behavior, but the research does not indicate that these approaches can singularly effect posthospital adjustment. ( 6) Ex-patients who attend aftercare clinics have a lower rate of recidivism than nonattenders. (c) Transitional facilities reduce recidivism but demonstrate little effect on enabling patients to function independently, as measured by posthospital employment, in the community, (d) There is a definite need for the continued use of specific outcome criteria so that the comparative effectiveness of various psychiatric rehabilitation procedures can be meaningfully evaluated.1 Requests for reprints should be sent to William