Behavior Therapy is focused on helping an individual understand how changing their behavior can lead to changes in how they are feeling.
The goal of behavior therapy is usually focused on increasing the person's engagement in positive or socially reinforcing activities. Behavior therapy is a structured approach that carefully measures what the person is doing and then seeks to increase chances for positive experience.
Herkov, M. (2006). About Behavior Therapy. Psych Central. Retrieved on March 17, 2012, from http://psychcentral.com/lib/2006/about-behavior-therapy/