My son stopped having bowel movements after 1 week of aba therapy. what would be standard protocol for the psychologist in charge to do?

Interesting question: I only know a little bit about Applied Behavior Analysis (ABA) therapy. Frankly, I don't know what a standard protocol for a psychologist in charge would be. The reason I answered is that I would think that one might wish to rule out medical reasons for lack of bowel movements before moving on to psychologically addressing it.