What finding would support a diagnosis of autism in a young child?

The choice indicating a lack of interest in playing with others is significant because social interaction difficulties are a core characteristic of autism spectrum disorder (ASD). Children with autism often demonstrate challenges in engaging with peers, which can manifest as a disinterest in cooperative play or a preference for solitary activities. This lack of interest in social interactions aligns with the diagnostic criteria for autism, where deficits in social communication and interaction are essential for a diagnosis.

While excessive talking might suggest other developmental communication patterns, it does not necessarily indicate autism and could be characteristic of advanced verbal skills or other conditions. An unusual attachment to specific toys can be noted in children with autism, but it is often part of a broader pattern that includes repetitive behaviors and play, making it less definitive on its own. Delayed speech development can be common in autistic children but is not exclusive to autism and may be seen in various communication disorders. Therefore, the absence of interest in peer interaction uniquely indicates a fundamental social struggle typical of autism.