C.D.
The study I read on this is that somewhere between 10-20 percent of children diagnosed as being on the spectrum can get off the spectrum by doing behavior therapy alone! The psychologist who had assessed my daughter was aware of this study and said that it's true and has been known about for awhile. Generally, the kids who are successful are: 1) very high-functioning to begin with, 2) intelligent, and 3) show great progress by the time they're 7!
The psychologist believes my daughter will be in this successful group! She didn't think it would be possible when she assessed her last year, but she made amazing progress in one year's time and appears to be heading off the spectrum. The psychologist did tell us that she'll always be quirky though. That's okay, I love my daughter's quirkiness!
C.
www.littlebitquirky.blogspot.com