although certain core criteria are required for a diagnosis of autism spectrum disorder, other behavioral, cognitive, genetic, and medical features are often seen in individuals diagnosed with autism spectrum disorder. this pattern of behaviors and other features have led psychologists to . group of answer choices search for explanations for the prevalence of autism. argue that autism is heterogeneous and the search is on for more homogeneous subgroups. conclude that autism is homogeneous and the search is on for the variables that predict the onset of asd. search for better data on the incidence of autism.