Intellectual and developmental disorders have social behavior symptoms, including which of the following?

Isolation behavior is a key symptom associated with intellectual and developmental disorders. Individuals with these disorders may have difficulties with social interactions and forming relationships, which can lead them to withdraw from social situations, thus exhibiting isolated behaviors. This social withdrawal is often due to challenges in communication, social cues, or understanding social norms, which might be prevalent in conditions such as autism spectrum disorder or intellectual disabilities.

In contrast, inattentiveness, non-age appropriate behavior, and lack of motivation, while they may also be observed in individuals with different disorders, are not as specifically indicative of the social behavior symptoms typically seen in intellectual and developmental disorders. Isolation behavior, however, directly relates to the difficulty these individuals may face in engaging with their peers, emphasizing the social ramifications of their disorders.