Therapist: Cognitive psychotherapy focuses on changing a patient’s conscious beliefs. Thus, cognitive psychotherapy is likely to be more effective at helping patients overcome psychological problems than are forms of psychotherapy that focus on changing unconscious beliefs and desires, since only conscious beliefs are under the patient’s direct conscious control.
Which one of the following, if true, would most strengthen the therapist’s argument?The therapist argues that cognitive psychotherapy is likely to be more effective because it focuses on conscious beliefs, and only conscious beliefs are under the patient’s direct conscious control.
The missing link is that psychotherapy works better when it focuses on mental states the patient can
directly control.
(A) Psychological problems are frequently caused by unconscious beliefs that could be changed with the aid of psychotherapy.
Wrong. This weakens or at least does not help the therapist. It suggests unconscious beliefs are important and can be changed through psychotherapy.
(B) It is difficult for any form of psychotherapy to be effective without focusing on mental states that are under the patient’s direct conscious control.
Correct. This directly supports the therapist’s reasoning. If effective psychotherapy generally needs to focus on mental states under direct conscious control, then cognitive psychotherapy has an advantage over therapies focused on unconscious beliefs and desires.
(C) Cognitive psychotherapy is the only form of psychotherapy that focuses primarily on changing the patient’s conscious beliefs.
Wrong. This shows cognitive psychotherapy is unique in its focus, but it does not show that this focus makes it more effective.
(D) No form of psychotherapy that focuses on changing the patient’s unconscious beliefs and desires can be effective unless it also helps change beliefs that are under the patient’s direct conscious control.
Tempting, but weaker than B. This says unconscious-focused therapies need to also affect conscious beliefs in order to work, but it leaves open that they do exactly that and are just as effective as cognitive psychotherapy.
(E) All of a patient’s conscious beliefs are under the patient’s conscious control, but other psychological states cannot be controlled effectively without the aid of psychotherapy.
Wrong. The first part repeats the idea that conscious beliefs are controllable, but the second part suggests psychotherapy can help control other psychological states too. It does not show cognitive psychotherapy is more effective.
Answer: (B)