According to the law, a child with childhood-onset pervasive developmental disorder who exhibits aggressive behaviors must be:

The appropriate choice is the one that emphasizes placing the child in the least restrictive environment. This principle is rooted in the idea that children with disabilities, including those with childhood-onset pervasive developmental disorders, should have the opportunity to learn alongside their typically developing peers to the greatest extent possible. The least restrictive environment supports inclusion and is designed to provide educational opportunities that are as close to a mainstream setting as feasible, while still catering to the child's individual needs.

This approach encourages the development of social skills and peer interactions, which are crucial for children with developmental disorders. It also aligns with the legal requirements under the Individuals with Disabilities Education Act (IDEA), which mandates that students with disabilities be educated in the least restrictive environment suited to their needs.

Providing a supportive educational environment that reduces the stigma associated with special education is vital for the child’s development, both academically and socially. By focusing on the least restrictive environment, educators can tailor support to help the child manage aggressive behaviors while still promoting inclusion and interaction with peers.