Well, my 2 1/2 year old son, has developmental delay. He has been tested, but he has not been diagnosed with autism or adhd or anything.His pediatrician has stated he does not have autism, because, she has done the tests she needed to rule that out. So, now he's going through speech therapy and cognitive therapy. I feel he is just as smart as any other child his age, however, he cries and whines constantly, if he's not watching T.V. He moves his and fingers strangely.