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Critical Reasoning: Conclusion Weakening Questions

There are two available procedures for treating heart disease. The two procedures are equally effective, but one of them is slightly cheaper than the other is. Doctors, therefore, decided to save money by treating heart patients with the cheaper procedure.

Which of the following presents the greatest challenge to the doctors' judgment?

You're right!

[[snippet]]

This answer choice exposes the argument's assumption. Introducing the patient's viewpoint/feeling shows us that there are additional factors playing a part in the decision of which medical procedure to use. Therefore, the conclusion is weakened since the doctors' decision now needs to take into account the patient's viewpoint, and not just the expenses.

Incorrect.

[[snippet]]

This answer choice strengthens the conclusion because it presents a drawback of the more expensive procedure. We were asked to weaken the doctors' decision which was to use the cheaper procedure. Thus, the correct answer is one that shows a drawback of the cheaper procedure or an advantage of the more expensive procedure. 

To prevent confusion, it is recommended that you write what you're looking for on your noteboard:

cheap -

expensive +

Incorrect.

[[snippet]]

This answer choice strengthens the conclusion because it presents a further advantage of the cheaper procedure. We were asked to weaken the doctors' decision which was to use the cheaper procedure. Thus, the correct answer is one that shows a drawback of the cheaper procedure, or an advantage of the more expensive procedure. 

To prevent confusion, it is recommended that you write what you're looking for on your noteboard:

cheap -

expensive +

Incorrect.

[[snippet]]

This answer choice neither weakens nor strengthens the conclusion as the information presented by it does not favor one procedure over the other. 

We were asked to weaken the doctors' decision which was to use the cheaper procedure. Thus, the correct answer is one that shows a drawback of the cheaper procedure or an advantage of the more expensive procedure. 

To prevent confusion, it is recommended that you write what you're looking for on your noteboard:

cheap -

expensive +

To prevent confusion, it is recommended that you write what you're looking for on the scratch paper:

cheap - bad

expensive - good

The cheaper procedure is not as pleasant for the patients as the other procedure is.

The more expensive procedure requires special instruments, which are not yet available in all hospitals.
More articles have been published on the cheaper procedure than on the more expensive one.
Patients should be included in the decision-making process regarding their own treatment.
The more expensive procedure takes longer to administer and requires the assistance of a nurse.