A mixed-methods examination of the gap between intelligence and adaptive functioning in autistic young adults without intellectual disability.

Lay Abstract: Adaptive functioning describes the age-appropriate skills necessary for independent living. Research suggests that autistic children, adolescents, and adults who do not have an intellectual disability demonstrate adaptive functioning challenges relative to their intellectual ability. Thus, even though many of these individuals have the intellectual capacity to excel in mainstream educational and vocational settings, their adaptive functioning challenges may serve as an obstacle to independence. The research on adaptive functioning in autistic adults is focused on statistical analysis of standardized assessments (e.g. parent-report on multiple choice questionnaires). Qualitative research that examines the narratives of young adults and their parents is needed to better understand adaptive functioning in young adults and their resulting service needs. This study combined statistical analysis of standardized assessments with qualitative analysis of interview responses from autistic young adults without intellectual disability and their parents. Findings replicated previous reports of adaptive functioning challenges and identified influences on adaptive functioning development, consequences of independence, and service needs. Taken together, findings indicate the need for interventions and services that facilitate adaptive functioning development in autistic adolescents and young adults and provide insight into potential intervention targets and strategies.