“…Recognising the high degree of similarity between diagnosed and self-identifying autistic people brings benefits that extend beyond research feasibility. The formation of an autistic identity, either through self-identification or diagnosis, contributes positively to the mental health and wellbeing of autistic people (Bervoets & Hens, 2020;Davies et al, 2023;Fletcher-Watson, 2023;Leedham et al, 2019;Lewis, 2016;Lilley et al, 2021), facilitating access to appropriate support that can improve quality of life, and shifting perceptions from negative labelling to a more nuanced understanding of personal identity (Arnold et al, 2020;Cerda et al, 2023;Davies et al, 2023;Huang et al, 2022bHuang et al, , 2022aHume & Burgess, 2021;McDonald, 2020;Smith-Young et al, 2020). It is possible, of course, that our self-identifying autistic people may have extensively researched what constitutes autism before/during self-identification.…”