@merry, I would be very hopeful that such a program of positive reinforcement would help just about any child. What they do first is an assessment to detetmine the things a child responds favorably to. Armed with that information and lots of dedication and patience, they slowly set about to gently shape the behavior. This is a case where speed is not warranted or desired. Relationship is where it's at. The child must be comfortable and feel safe, not threatened or shamed in any way.

I would think this focus would have a really good chance of working.

Love and light,
Mamacita Jane