The Effects of Early Language on Age at Diagnosis and Functioning at School Age in Children with Autism Spectrum Disorder.

The team looked at kids with autism who had early language delay. They matched them with kids with autism who talked on time.

Both groups were checked again at school age. The study asked: does late talking predict worse daily living skills later?

After matching, both groups scored the same on adaptive skills. Early language delay did not spell trouble for dressing, eating, or other daily tasks.

IQ level and social symptoms told the story better than the age a child first spoke.

Howlin (2003) saw the same null result in adults. Adults with and without early language delay looked alike on social and language measures.

Allen et al. (2001) also found no split: in cognitively able autistic kids, 71 variables showed no difference tied to speech delay.

Payne et al. (2020) seems to disagree. Teens with early language delay had weaker executive function and motivation. The key gap: Anthony looked at daily living skills; K et al. looked at planning and drive. Different domains, different answers.

Stop using early talking history to guess how well a child will dress, cook, or use the bus. Check IQ and social symptoms instead. When you write goals, lean on current ability and social profile, not old milestone charts.