Moshe is Certified by Dr. Ross Greene PhD in Collaborative and Proactive Solutions, made famous in his book The Explosive Child. CPS is a problem solving method for children and parents that uses both the parent and child's concerns about the problem at hand. With this information, parents and child learn how to collaboratively solve the problem to the satisfaction of both parent and child. It's a straight forward concept following the basics set out in Dr. Greene's books. The method often results in a lasting resolution of even severe problems between parents and children. The method has been validated in a 5 year NIMH study published by Dr. Greene in 2016.