Transition to Adulthood: Executive Functions and Independent Living Skills in Autistic Young Adults

This study investigated differences in independent living skills and executive functioning skills between autistic and neurotypical young adults in addition to how executive functioning skills contribute to independent living skills in autistic young adults. Participants completed the Adaptive Behavior Assessment System as a measure of independent living skills and the Behavioral Rating Inventory of Executive Function Adult version to measure executive functioning abilities. The Weekly Calendar Planning Activity was also used as a novel measure of performance-based executive functioning skills. Results demonstrated that independent living skills and executive functioning skills were significantly lower in autistic adults (p<.001) than neurotypical young adults. The WCPA also indicated deficits in the autistic population as demonstrated by following fewer rules, utilizing fewer strategies, lower accuracy, and lower self-awareness of performance. Within autistic adults, self-reported measures of executive functioning skills robustly correlated with independent living skills. While the Weekly Calendar Planning Activity accuracy correlated strongly with self-reported measures of executive function, the accuracy did not significantly correlate with the ABAS-3 scores suggesting a discrepancy between self-report and performance-based measures of executive functioning skills. Results indicated that the Weekly Calendar Planning Activity shows promise to inform clinical practice by providing a window into how the integration of multiple executive functioning skills impact challenges with everyday living in the adult autistic population.