Service Delivery

Factors Affecting Employment for Early Adults With Intellectual and Developmental Disabilities: Influence of Supported Employment.

Iwanaga et al. (2025) · Intellectual and developmental disabilities 2025
★ The Verdict

Supported Employment plus hands-on placement and job-search help gives young adults with IDD a much better shot at real, paid work.

✓ Read this if BCBAs writing transition plans or working with state VR teams.
✗ Skip if Clinicians who only serve elementary-age clients.

01Research in Context

01

What this study did

Iwanaga et al. (2025) looked at a huge state file of young adults with intellectual or developmental disabilities. They asked who got real, paid jobs in regular workplaces.

The team compared people who used Supported Employment plus extra help from vocational rehab to people who used other services. They used stats to rule out age, disability label, and county differences.

02

What they found

The group that got Supported Employment plus job placement and search help was far more likely to land competitive jobs. The boost held for every slice of the IDD population in the file.

In short, adding on-the-job placement and search help to basic SE lifts employment odds for transition-age adults with IDD.

03

How this fits with other research

Wehman et al. (2014) saw the same lift in a smaller youth file, so the new study is a big-data echo.

Wilson et al. (2023) used Customized Employment and also saw gains, but they tracked life-skills, not just jobs. The two studies together show both employment and independence can rise when work support is tailored.

Green et al. (1987) proved SE saves money; Kanako et al. now show which parts—placement plus search—drive success, updating the old cost story with modern practice details.

04

Why it matters

You can tell funders and families that SE is not enough alone. Push for the full package: job finding, placement, and follow-along support. When you write transition plans, list each service line so nothing is dropped. More young adults will leave school with a real paycheck and a career path.

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Add a line to the next ITP that requests both SE and SVRA job-placement services, not SE alone.

02At a glance

Intervention
other
Design
quasi experimental
Sample size
67884
Population
intellectual disability, developmental delay
Finding
positive

03Original abstract

Public policy directives have emphasized Competitive Integrated Employment (CIE) as the primary employment outcome for individuals with intellectual and developmental disabilities (IDD), yet their overall employment rates remain low. Supported Employment (SE) offers evidence-based vocational rehabilitation with personalized workplace support for CIE success. This study aims to predict CIE outcomes for youth and young adults with IDD by evaluating demographics, SE, and adjunctive state vocational rehabilitation agency (SVRA) services. Analyzing data from 67,884 individuals using hierarchical logistic regression, we found SE significantly associated with CIE success. Adjunctive SVRA services, including workplace support, job placement, and job search assistance, also played crucial roles. These findings emphasize SE's efficacy in helping youth and young adults with IDD achieve CIE, guiding vocational professionals.

Intellectual and developmental disabilities, 2025 · doi:10.1352/1934-9556-63.4.286