Which characteristic is associated with autism according to the Individuals with Disabilities Education Act's definition?

The correct response identifies resistance to environmental change as a characteristic associated with autism according to the Individuals with Disabilities Education Act (IDEA). Individuals on the autism spectrum often exhibit a strong preference for routine and predictability. This can manifest as distress or resistance when faced with changes in their environment or daily routines. This characteristic reflects a broader pattern of behavior associated with autism, where individuals may seek sameness and have difficulty adapting to transitions or new experiences.

In contrast, the other options do not accurately represent characteristics defined within the IDEA framework for autism. While some individuals with autism may have specific skills, such as verbal intelligence or reasoning abilities, these are not universal traits that would be included in the IDEA's definition. Similarly, heightened social interaction is generally not associated with autism, as individuals with autism often struggle with social interactions and communication. Thus, resistance to environmental change stands out as a defining aspect of autism in the context of the IDEA definition.