- Tue Jan 20, 2009 12:00 am
#73662
Complete Question Explanation
Strengthen. The correct answer choice is (B).
The argument is structured as follows:
Premise: Cognitive psychotherapy focuses on changing a patient's conscious beliefs.
Premise: Other forms of psychotherapy focus on changing unconscious beliefs.
Premise: Only conscious beliefs are under the patient's direct control.
Conclusion: Cognitive psychotherapy is likely to be more effective.
To strengthen the argument we need to connect the premises, which are ultimately about what is in the patient's direct control, to the new element in the conclusion, which is the claim that cognitive psychotherapy is "more effective." We need to establish that the effective use of psychotherapy depends, at least in part, on its ability to alter beliefs that are under the patient's direct control.
Answer choice (A): Because it does not in any way link "direct control" to the idea of being "more effective," this answer does nothing to close the gap in the argument and strengthen the conclusion.
Answer choice (B): This is the correct answer choice. This answer closes the gap between the premises, telling us that effectiveness depends largely on focusing on those mental states that are under the patient's direct control.
Answer choice (C): No mention is made here of direct control or effectiveness, and so this answer does not help the argument.
Answer choice (D): A very attractive wrong answer, this scrambles things up a bit by talking about forms of therapy that focus on unconscious beliefs and desires, saying that they can only be effective if they also help change the ones under direct conscious control. While this pushes many of the right buttons, it actually tells us nothing about which form of psychotherapy is more effective, and leaves open the possibility that cognitive psychotherapy might be less effective than another form that focuses on the patient's unconscious beliefs and desires.
Answer choice (E): This answer does nothing to tell us about what form of therapy is more effective, and is therefore a loser.
Strengthen. The correct answer choice is (B).
The argument is structured as follows:
Premise: Cognitive psychotherapy focuses on changing a patient's conscious beliefs.
Premise: Other forms of psychotherapy focus on changing unconscious beliefs.
Premise: Only conscious beliefs are under the patient's direct control.
Conclusion: Cognitive psychotherapy is likely to be more effective.
To strengthen the argument we need to connect the premises, which are ultimately about what is in the patient's direct control, to the new element in the conclusion, which is the claim that cognitive psychotherapy is "more effective." We need to establish that the effective use of psychotherapy depends, at least in part, on its ability to alter beliefs that are under the patient's direct control.
Answer choice (A): Because it does not in any way link "direct control" to the idea of being "more effective," this answer does nothing to close the gap in the argument and strengthen the conclusion.
Answer choice (B): This is the correct answer choice. This answer closes the gap between the premises, telling us that effectiveness depends largely on focusing on those mental states that are under the patient's direct control.
Answer choice (C): No mention is made here of direct control or effectiveness, and so this answer does not help the argument.
Answer choice (D): A very attractive wrong answer, this scrambles things up a bit by talking about forms of therapy that focus on unconscious beliefs and desires, saying that they can only be effective if they also help change the ones under direct conscious control. While this pushes many of the right buttons, it actually tells us nothing about which form of psychotherapy is more effective, and leaves open the possibility that cognitive psychotherapy might be less effective than another form that focuses on the patient's unconscious beliefs and desires.
Answer choice (E): This answer does nothing to tell us about what form of therapy is more effective, and is therefore a loser.