Verbal Behavior Therapy teaches communication using the principles of Applied Behavior Analysis and the theories of behaviorist B.F. Skinner.By design, Verbal Behavior Therapy motivates a child, adolescent or adult to learn language by connecting words with their purposes.any small studies have supported the effectiveness of Verbal Behavior Therapy with children. (Dr. Sundberg summarized these in 2001, here .) However, a 2006 review of the scientific literature concluded that more research is needed to confirm effectiveness and identify who is most likely to benefit from the approach.