BrainMass Quizzes Autism Do you know all about autism? Find out with this quiz. 1 What is the average age a child is diagnosed with autism? 18 months 2 4 7 None of the Above 2 Which is not on the Autism Spectrum? Asperger's Disorder Rett's Disorder Autistic Disorder Childhood Disintegrative Disorder All of these are on the Autism Spectrum 3 Over or under reaction to one of the five senses is a main characteristic of autism. True False 4 Prenatal viral infection has been considered one of the main non-genetic causes of autism. True False 5 Autism is a learning disability. True False Submit Quiz