Fidelity to the IPS model has been identified as an
important factor in the effectiveness of SE programs
implemented in the community. Eleven randomized
controlled trials of high-fidelity IPS programs reported
an employment rate of 61% for IPS compared to
23% for controls [11]. Research also supports the
cost-efficiency of SE in that cost-efficiency increases
75 yearly, with benefits exceeding corresponding costs
in the fourth year [12, 13]. Individualized placement
results in more work hours and a higher rate of competitive
employment for persons with disabilities [9].
The systematic body of rigorous research demonstrates
the effectiveness of SE within the IPS framework,
thereby establishing SE as an EBP for individuals with
severe mental illness across racial and ethnic minority
backgrounds [9, 10].