A client is working with a therapist to overcome a fear of public speaking. The therapist does not delve into the client's childhood or unconscious motivations. Instead, the treatment plan involves creating a list of speaking situations, ordered from least to most frightening. The client then learns relaxation techniques and begins by imagining the least frightening situation while practicing these techniques. Over several sessions, they gradually work their way up the list, eventually practicing short speeches in front of a mirror, then for a friend, and finally for a small group. Based on this description, what is the primary goal of this therapeutic approach?