Abstract
This preliminary study aims to demonstrate the reliability and validity of the adapted Do-Eat Basic activities of daily living (BADL) assessment for children with autism spectrum disorder (ASD). Participants were 53 children ages 6-10 years: 17 diagnosed with high-severity ASD (HS-ASD) and 16 with low-severity ASD according to the DSM-5 and based on the CARS-2, and 20 controls with typical development. Measurement tools were the adapted Do-Eat Washy (Washy), Participation in Childhood Occupations Questionnaire (PICO-Q), and Pediatric Evaluation of Disability Inventory (PEDI). The Washy domains exhibited high internal consistency (α = 0.841-0.856). Significant differences were found between the HS-ASD and other groups in the Washy domains, exhibiting discriminant validity. The Washy convergent and concurrent validity indicated good results. A highly substantial negative correlation was shown between the Washy and three PICO-Q ADL difficulty-in-performance items (p < 0.001): bathing (-0.550), hygiene (-0.571), and handwashing (-0.733). The Washy performance scores and the PEDI total score demonstrated a strong correlation. (r = 0.799, p < 0.001). Primary results indicate that, following further research on larger representative samples, the Washy may be a reliable and valid tool for assessing BADL among children with ASD.