Age-Related Changes in Functional Skills and Daily Life Task Management Among Autistic Youth.

Importance: Autistic youth who graduate with a high school diploma may experience challenges in acquiring functional skills for everyday independence. Few studies have focused on how their functional and self-management skills change during the transition to adulthood.

Objective: To examine cross-sectional differences and longitudinal changes in the functional and self-management skills of transition-age autistic youth.

Design: Exploratory longitudinal study (18-mo follow-up).

Setting: Community.

Participants: Autistic high school students who graduated with a high school diploma and their parents (N = 50).

Outcomes and measures: Pediatric Evaluation of Disability Inventory-Computer Adaptive Test (ASD).

Results: Older youth (ages 18-20 yr) had significantly lower normative Social/Cognitive and Responsibility domain scores (i.e., self-management) than youth ages 14-17 yr. Approximately 2 yr later, youth in both age groups significantly improved in scaled scores on the Daily Activities and Responsibility domains.

Conclusions and relevance: Autistic youth's functional and self-management skills fell below those of nonautistic peers; however, these skills do change over time and are therefore appropriate targets for intervention. Plain-Language Summary: The findings of this study highlight the importance of focusing on the functional and self-management skills of autistic youth as part of their transition to adulthood. Occupational therapists can play a valuable role in helping autistic youth to achieve independence as adults by assessing their functional needs and strengths and by providing client-centered interventions.