skip to main content
Washington State Institute for Public Policy
Back Button

Individual Placement and Support for first episode psychosis

Adult Mental Health: Serious Mental Illness
  Literature review updated August 2017.

Individual Placement and Support (IPS) has been used with adults with serious mental illness to assist clients in obtaining competitive employment. In recent years IPS has been modified for persons experiencing their first episode of psychosis and, depending on the person’s preference, the program focuses on employment or return to school.
 
ALL
META-ANALYSIS
CITATIONS

Meta-analysis is a statistical method to combine the results from separate studies on a program, policy, or topic to estimate its effect on an outcome. WSIPP systematically evaluates all credible evaluations we can locate on each topic. The outcomes measured are the program impacts measured in the research literature (for example, impacts on crime or educational attainment). Treatment N represents the total number of individuals or units in the treatment group across the included studies.

An effect size (ES) is a standard metric that summarizes the degree to which a program or policy affects a measured outcome. If the effect size is positive, the outcome increases. If the effect size is negative, the outcome decreases. See Estimating Program Effects Using Effect Sizes for additional information on how we estimate effect sizes.

The effect size may be adjusted from the unadjusted effect size estimated in the meta-analysis. Historically, WSIPP adjusted effect sizes to some programs based on the methodological characteristics of the study. For programs reviewed in 2024 or later, we do not make additional adjustments, and we use the unadjusted effect size whenever we run a benefit-cost analysis.

Research shows the magnitude of effects may change over time. For those effect sizes, we estimate outcome-based adjustments, which we apply between the first time ES is estimated and the second time ES is estimated. More details about these adjustments can be found in our Technical Documentation.

Meta-Analysis of Program Effects
Outcomes measured No. of effect sizes Treatment N Effect sizes (ES) and standard errors (SE) Unadjusted effect size (random effects model)
ES SE Age ES p-value
Labor market activity
Regular employment or engagement in job preparation activities.
24 1 44 0.759 0.322 25 0.759 0.018

Citations Used in the Meta-Analysis

Major, B.S., Hinton, M.F., Flint, A., Chalmers-Brown, A., McLoughlin, K., & Johnson, S. (2010). Evidence of the effectiveness of a specialist vocational intervention following first episode psychosis: a naturalistic prospective cohort study. Social Psychiatry and Psychiatric Epidemiology, 45(1), 1-8.