Hi and welcome! I think it would help to give us a little more information- not identifying information but basic stuff like age (or age range), have you always had difficulties with your son being noncompliant, who diagnosed him (the school, etc) and was he diagnosed with anything else. If it was just the school, I wouldn't put a lot of weight on it but some thing else still might be going on with him. Really though, if he's a young adolescent boy and this is the only problem you are having from him, I'd probably take him to a family therapist and try to get to the root of it.