I'm really curious. My son had been mishandled and misdiagnosed and wrongly medicated for years by a highly recommended Psychiatrist. He also had several Psychologists who read him wrong. One even said he had fetal alcohol syndrome (he doesn't) and that "there is nothing we can do for THEEEESE kids." He said it right in front of my non-verbal four year old son (who could nonetheless understand everything). His school district was a wash. They said he had "learning disabilities" but that he had "outgrown them" by kindergarden. Our saving grace, as many here know, was our neuropsychologist. The dear man got every record my son had. He read them. He gave me a hundred questionnaires to fill out. He tested my son on every level, observed him, talked to him, talked to me and hub, and spent TEN HOURS with this child. His diagnosis of Pervasive Developmental Disorder (PDD)-not otherwise specified is probably correct! Since then my son, now off medications, has done NOTHING but IMPROVE to the point where he is no longer a behavior problem. I love Neuropsyschs. I think they test the kids at a much higher level than anyone else and spend a lot more time with the kids and don't jump to snap diagnoses. Who is the professional that you believe helped your child the most?