I think ABA can work as well for Learning difficulties (by which I mean IQ difficulties, and also speech delay) as for autism.
I've seen it work.
I'd like to tell you the story of the little boy of a pal of mine. Born with a skull and brain defect, he was lobbed into mainstream school at age 4, with an untrained LSA. She basically just contained him, didn't educate.
When I met them, he'd been in mainstream for 2 years, and could not
- talk (at all, no words, though lots of receptive understanding)
- read
-write
- do even basic sums
- play with other kids
- behave well in class
The mainstream school wanted to chuck him out as he was just so disruptive. The school had made zero attempt to teach him to talk/read/write, because either they couldn't be bothered or they were too busy managing his bad behaviours and stopping him from disrupting class with his noise and overactivity/violence.
They wanted to put him in a SLD school, which I know well, and which would simply babysit him till 19.
That was all that the state had offered this boy. A big fat zero. At 5, he was being effectively written off as ineducable.
I recommended an ABA tutor, who could give the family 4 hours a week.
I also told the mum all about ABA techniques (eg rewards, motivation, extinction for bad behaviour or removal of toy) and taught her how to teach him to read and write etc, using ABA techniques.
Cut to 1 year later. The kid came for a playdate with my boy this week. He is now talking in full sentences ; eg "after I have come to play with Robbie, can he come to play at my house". He had zero words when I met him, I promise you. ABA isn't magic, but no-one had given this boy the time or had worked out how to motivate him to speak in our woefully inexperienced mainstream "SEN provision".
He is now also reading at 1c level, writing, able to be in the classroom far better, behaviours right down. The boy is transformed. His life prospects are transformed. He is staying in mainstream.
Sometimes it is not just that ABA is the best thing, it's that it's the ONLY alternative to what can amount to educational neglect in our mainstream so-called inclusion system.
Sometimes ABA is best just because tutors will come to the child's home and do intensive play/work on speech and academics. In a way that one group SALT session a term just can't get near.
Sometimes it's not even the ABA, it's just the one-to-one intensive attention from an intelligent adult who is motivated to get the boy talking/reading/writing.
This boy isn't autistic, he has learning difficulties due to brain damage. But if he had waited till he was 7, to identify exactly what his condition was (though I doubt that would have happened in today's NHS), he would have been written off by the time the diagnosis dropped through the letter box..
It's not best practice and neuroimaging we should be comparing ABA to , Dolfrog, it's the woefully inadequate reality out here in the real world of both an inadequate diagnosis proces and educational offering.
That's why I think ABA can work for everyone.