Exploring Vocational Training Interventions for Adults With Autism Spectrum Disorders: A Scoping Review.

A scoping review maps what has been studied. It does not compare interventions or estimate how well any of them work, and the authors say so directly. The 26 studies reported dose, content and outcomes so differently that they could not be compared on common measures. Most studies were small. The median sample was 15 people and the smallest had 3, and many were run in a single service context, so individual results are fragile and may not carry over. Fourteen of the 26 studies came from the United States, where disability employment policy and funding differ from most other countries, so the service models described do not necessarily transfer. The search was limited to English-language publications, so relevant work published elsewhere may be missing. How often a theme appears in the literature does not mean the intervention behind it works; the authors say the frequency of themes does not indicate effectiveness. Outcomes were mostly self-report and employment status, with few observed performance measures and very few reports of whether a programme was delivered as intended, so what was actually delivered and how well people performed at work is often unclear. The review did not assess the quality of the included studies.

The review was funded by Tokyo Metropolitan University. The authors declare no conflict of interest, and no commercial or industry sponsor is named.

Do not read this as proof that any of these vocational programmes works. It is a scoping review that maps what has been studied, it does not compare programmes or weigh up effectiveness, and the authors state that how often a theme appears in the literature does not indicate that the intervention behind it is effective. The employment figures quoted from individual studies come from small trials of differing quality that the review did not appraise.