“…Only nine studies (16%) focussed, at least in part, on Autistic adults with intellectual disability [ 13 •, 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ]. For the 35 studies (64%) including Autistic adults’ self-report data, it is likely that participating adults did not have a co-occurring intellectual disability, since self-report requires the ability to understand and respond to questions (orally or in writing), usually without support.…”