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Very interesting question with lots of layers of logic. So pay more emphasis on understanding passages and understanding the role of each statement and how each statement connects with others. Let's be methodological and solve this question step by step.
I am going to
start with reading the question stem first because the passage is long and I want to orient myself before I want to dive in deep. The question asks us to find an assumption that is necessary for the argument to stand.
The strategy should be to find an answer choice that:1 - is a MUST BE TRUE for the argument to hold.
2 - presents a NEW piece of information.
Understand the passage:Statement 1 sets the context. It means patients have a right to say yes or no to a procedure that is experimental in nature. It is WRONG to proceed without CONSENT.
Statement 2 is evidence of the author's conclusion. This statement says: in medical emergencies, the knowledge of what is best comes from the experimentation and that experimentation can ONLY happen if you bypass the CONSENT. Here knowledge of best in my opinion means knowledge of what works and what does not.
Statement 3 is the conclusion. Hence we should allow some restricted NONCONSENSUAL medical research.
Let us know connect and simplify the argument:
All in all the passage says some restricted NONCONSENSUAL medical research should be allowed because it is necessary to gain knowledge that could help determine the best course of treatment in medical emergencies.This is the most important step of analyzing any CR argument IMO.Let us think a bit about what could be possible assumptions:Why one should not allow the restricted NONCONSENSUAL medical research given that it is necessary to gain knowledge that could help determine the best course of treatment in medical emergencies?
The knowledge gained from such medical research cannot be gained through other options. If knowledge could be gained from the other sources, should one then even need to break the rules?
So the assumption is
knowledge gained from such research is better (marginally or significantly; does not matter) than the knowledge gained from the other sources.I was not able to pre-think many assumptions here since my thinking is not that broad. If I were in the exam, I would still be confident moving to answer choices because my understanding is sufficient. Now let us evaluate the answer choices. Focus on eliminating the definitely wrong ones.Choice A:
Let us understand what this means. If doctors often do not know what is best for their patients, does it necessarily warrant the need for NONCONSENSUAL medical research? What if for a given patient in a medical emergency a doctor lacks some experience which he can gain by discussing with other doctors. But still, negate this and see if the conclusion breaks.
Doctors often know what is best for their patients in emergency situations. Again this does mean we should not encourage the NONCONSENSUAL medical research? No.
Choice A is not a must be true. This definitely strengthens the conclsuion.Choice B:
This is tempting. This choice says if patients know that experimental research is being carried out, then results are adversely affected.
Please note the focus of the conclusion and passage is CONSENT vs NON-CONSENT.
What this choice implies is that if patients know that they are under experimental research (most likely they have CONSENTED), then the results of the research are flawed. This choice DOES NOT guarantee that if they do not know they are under such research (most likely NON-CONSENSUAL), then the results are not flawed.
Basically, If A then B, does not mean If not A then not B. Hence do not over-infer from this choice.Choice C:
This is not a MUST BE TRUE. Let us negate.
Even if the research does not yield the results that benefit the patients, doctors would still be equipped with a piece of information that will prevent them from using this treatment in future cases. This is eventually useful.
Negation supports the conclusion. Choice D:
This is out of scope, it talks about what happens when treatment is unknown. We are focused on finding the (best) treatments when they are unknown.
Choice E:
This implies that NON-CONSENSUAL is sometimes better than CONSENSUAL research. And this is the missing piece we are looking for.
Let us negate this NON-CONSENSUAL is NEVER better than CONSENSUAL research. This breaks the conclusion.