Just want to share on this thread something the eminent ABAer Dr Pat McGreevy said at a recent lecture I attended of his.
He basically said that where a child learns to echo (or imitate) sounds and then words, he has in all his decades working with ASD kids seen only one foolproof way of turning that echoed speech into true independent speech : the AbA (or vB?) "echoic to mand transfer" protocol.
I am going to describe it badly, but here is an anecdote he told in order to illustrate how this works.
He was visiting a vvvvv rich family. They were massive PECs fans, and had bought PEcs books for every room of their mansion, every car, even one in the pool house.
As Dr Pat talked to the father, he noted out of the corner of his ear that the boy was repeating or echoing the occasional one of their words, eg "swim".
He decided to go swimming with the boy. At the side of the pool, with the boy all excited about going swimming (his major love) Dr Pat stopped him, stood in front of him and said "say swim" (but the "say" bit quieter, so as to be faded out soon). The boy echoed "swim" and they both jumped in joyously.
Then, out they got again, to the boy's disgust, but he got his reward of jumping in again when he echoed Dr Pat's "swim".
Third or fourth time, Dr P did not prompt "say swim" at poolside, but just pointed at the boy's mouth expectantly. He said "swim". His first independent mand, or request.
Now probably that family had been misusing Pecs (though actually they were so rich that their adviser had been Pecs-creator Mr Bond himself) but I think this story just might help a few echoic kids. I got goose-bumps hearing it,
Dr Pat ended by saying his heart bleeds to think of how many ASD kids there are globally, with echoic speech, but languishing in schools which just don't know this one simple protocol.
That would have been my boy, had he stayed in his Teacch school.