The role of adaptive behavior in autism spectrum disorders: implications for functional outcome.

The team looked at 1,089 verbal youth with autism. They asked how well IQ scores predict real-life skills like brushing teeth or ordering food.

They used standard IQ tests and the Vineland Adaptive Behavior Scales. The goal was to see if smart kids also act smart in daily life.

IQ explained only half of the differences in daily living skills. A big gap stayed even after IQ was counted for.

Autism symptom severity did not explain the rest of the gap. Kids could talk well and still need help with showers or money.

Richman et al. (2001) saw the same IQ-adaptive split in a smaller group. The new study shows the pattern holds in almost 1,100 kids.

Chang et al. (2013) found the same gap in Taiwanese children. Social skills were the weakest spot there too.

Tillmann et al. (2019) added that only social-communication symptoms hurt adaptive scores. Sensory or repetitive behaviors did not matter.

Austin et al. (2015) tracked kids over time and saw the gap widen as they aged. Executive function problems helped explain why.

Do not trust a high IQ score to mean a child can cope at school or home. Add the Vineland or ABAS to every assessment. Write goals for dressing, shopping, and small talk even for bright clients. Teach these skills directly instead of hoping IQ gains will spill over.