title: Evaluation of treatment programs for persons with severe mental illness: moderator and mediator effects.
abstract: This study evaluated several statistical models for estimating treatment effects in a randomized, longitudinal experiment comparing assertive community treatment (ACT) versus brokered case management (BCM). In addition, mediator and moderator analyses were conducted. The ACT clients had improved outcomes in terms of housing and psychiatric symptoms than BCM clients. Case management housing assistance and financial assistance partially mediated housing outcomes. No reliable mediators were found for psychiatric symptoms, and no reliable moderators were found for either housing or psychiatric symptoms. The study also made several important methodological advances in the analysis of longitudinal data in randomized experiments.
authors.affiliation: Department of Psychology, University of Connecticut, Storrs 06269-1020, USA. kenny@uconnvm.uconn.edu
authors.forename: David A
authors.initials: DA
authors.lastname: Kenny
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Calsyn
authors.forename: Gary A
authors.initials: GA
authors.lastname: Morse
authors.forename: W Dean
authors.initials: WD
authors.lastname: Klinkenberg
authors.forename: Joel P
authors.initials: JP
authors.lastname: Winter
authors.forename: Michael L
authors.initials: ML
authors.lastname: Trusty
mesh_terms: D000328:Adult; D000368:Aged; D019090:Case Management; D003156:Community Mental Health Services / Q000458:organization & administration*; D005260:Female; D006208:Halfway Houses; D006703:Ill-Housed Persons / Q000706:statistics & numerical data; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy*; D008605:Mental Health Services / Q000458:organization & administration*; D008875:Middle Aged; D015233:Models, Statistical; D016730:Program Development; D015397:Program Evaluation; D011569:Psychiatric Status Rating Scales; D012112:Residential Facilities / Q000458:organization & administration / Q000706:statistics & numerical data*; D018570:Risk Assessment; D012720:Severity of Illness Index; D014481:United States