Final answer:
Repetitive/restrictive behaviors and interests are characteristic symptoms of Autism Spectrum Disorder (ASD), seen in individuals of all ages, including more able or older individuals with ASD.
Step-by-step explanation:
Repetitive/restrictive behaviors and interests are characteristic symptoms of Autism Spectrum Disorder (ASD), a neurodevelopmental disorder. Individuals with ASD may exhibit impaired social skills, repetitive motor behaviors, strict adherence to certain rituals, and preoccupation with specific subjects.
For example, they may engage in repetitive hand flapping or rocking, insist on following a specific routine every day, or have intense interests in narrow topics, such as trains or dinosaurs. These behaviors and interests can be seen in individuals of all ages, including more able or older individuals with ASD.