Final answer:
The therapy used to help Murray is behavioral therapy, characterized by setting specific goals and tracking behaviors to change observable actions.
Step-by-step explanation:
The method used to help Murray deal with his problem is behavioral therapy. This approach is evident by the therapist's focus on establishing small, specific goals and asking Murray to keep a diary to track his time. Such techniques stem from behavioral principles that aim to modify behavior through goal-setting and self-monitoring. The therapy did not delve into psychodynamic exploration of unconscious motives, nor did it emphasize the holistic perception of Gestalt therapy or existential considerations of human existence. Instead, it is grounded in the practical step-by-step process of changing observable behavior, which is characteristic of behavioral therapy.