Walter has a phobia of elevators. He goes to a psychotherapist, who helps treat the condition by gradually exposing Walter to stimuli that are related to elevators while having him learn to relax. Eventually Walter will be taken to an elevator and encouraged to get on and ride it. What procedure is the psychotherapist using to reduce Walter's phobia?

Systematic desensitization                    

Explanation:

Systematic desensitization: In psychology, the term "systematic desensitization" is described as one of the different forms of behavior therapy wherein counterconditioning is being used by the therapists in order to reduce the patient's anxiety associated or connected with a specific stimulus.

Steps involved in systematic desensitization:

1. Establishment of anxiety.

2. Mechanism responses are being learned.

3. Coping techniques through counterconditioning.

In the question above, the given statement states that psychotherapist is using systematic desensitization to reduce Walter's phobia.

answer; the correct answer is (ethics);