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Nurse: Dr. Roark’s patients tend to require far more time for recupera

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Nurse: Dr. Roark’s patients tend to require far more time for recupera [#permalink]

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New post 21 Apr 2017, 22:58
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81% (00:58) correct 19% (01:24) wrong based on 101 sessions

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Nurse: Dr. Roark’s patients tend to require far more time for recuperation than the patients of any other surgeon at Oceanside Hospital. Although she is reputed to be quite talented, Dr. Roark is clearly not as skilled as the other surgeons at Oceanside.

Which of the following, if true, most seriously weakens the nurse’s argument?

(A) Dr. Roark’s patients tend to require fewer procedures than those of other doctors in the hospital.
(B) The recuperation required after a given surgery can vary significantly based on the skill level of the doctor who performed the surgery .
(C) Dr. Roark has been associated with Oceanside for three years longer than any other surgeon in the hospital.
(D) Operations which require less skill tend to require shorter periods of post-operative recuperation.
(E) Dr. Roark has operated on two other doctors at Oceanside

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Re: Nurse: Dr. Roark’s patients tend to require far more time for recupera [#permalink]

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New post 25 Apr 2017, 07:50
Question Type: Weaken

Main Point: Increase in time --> Less skilled
Assumption: Skill level is inversely proportional to time

(A) Dr. Roark’s patients tend to require fewer procedures than those of other doctors in the hospital. - Incorrect. Out of scope. No stated relationship between skill level and number of procedures.

(B) The recuperation required after a given surgery can vary significantly based on the skill level of the doctor who performed the surgery. - Incorrect. Partial scope.

(C) Dr. Roark has been associated with Oceanside for three years longer than any other surgeon in the hospital. - Incorrect. Irrelevant.

(D) Operations which require less skill tend to require shorter periods of post-operative recuperation. - Correct. Skill is directly proportional to time.

(E) Dr. Roark has operated on two other doctors at Oceanside - Incorrect. Irrelevant.

Answer: D
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Nurse: Dr. Roark’s patients tend to require far more time for recupera [#permalink]

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New post 20 May 2017, 23:13
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I initially selected OA as A and want to understand why my reasoning is incorrect?
Conclusion: Dr R is not as skilled as other doctors in O.
Supporting premise as per argument: patients treated by Dr.R take more time to recover than those treated by other doctors.
Goal to prove that Dr. R is as / more skilled than other surgeons.
A: if Dr R's patients take few time to recover (inherent assumption being fewer procedure leads to recovery in shorter period) then I can definitely say that Dr. R is more skilled since procedure are suggested by Dr. R. However one important point about this answer option is it attacks premises. As per premise of arguments, Dr R's patients require more recovery time and as per this option, the recovery time is less. Does it mean it weaken Qs we can not attack premise to break the conclusion?
B: I feel this is also a close contender since if recovery period vary as per skills of doctor, I can not safely conclude that Dr R's skill are not up to mark. Can you elaborate why this is incorrect?
WR, Arpit.
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Re: Nurse: Dr. Roark’s patients tend to require far more time for recupera [#permalink]

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New post 12 Oct 2017, 23:31
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adkikani wrote:
GMATNinja GMATNinjaTwo VeritasPrepKarishma
I initially selected OA as A and want to understand why my reasoning is incorrect?
Conclusion: Dr R is not as skilled as other doctors in O.
Supporting premise as per argument: patients treated by Dr.R take more time to recover than those treated by other doctors.
Goal to prove that Dr. R is as / more skilled than other surgeons.
A: if Dr R's patients take few time to recover (inherent assumption being fewer procedure leads to recovery in shorter period) then I can definitely say that Dr. R is more skilled since procedure are suggested by Dr. R. However one important point about this answer option is it attacks premises. As per premise of arguments, Dr R's patients require more recovery time and as per this option, the recovery time is less. Does it mean it weaken Qs we can not attack premise to break the conclusion?
B: I feel this is also a close contender since if recovery period vary as per skills of doctor, I can not safely conclude that Dr R's skill are not up to mark. Can you elaborate why this is incorrect?
WR, Arpit.



Premises:
Roark's patients require far more time for recuperation than other surgeons' patients.
She is well reputed.

Conclusion: She is not as skilled as other surgeons.

When I read the first premise, this is what I thought - why would it be so? Perhaps she doesn't do a very clean surgery. Or perhaps she gets the most serious cases.

We need to weaken that she is not skilled.

(A) Dr. Roark’s patients tend to require fewer procedures than those of other doctors in the hospital.
This means that her patients are actually healthier than other patients (they require fewer procedures means they undergo fewer surgeries). It doesn't weaken the conclusion at all; if at all, it strengthens it.

(B) The recuperation required after a given surgery can vary significantly based on the skill level of the doctor who performed the surgery.
This also doesn't weaken the conclusion. Actually, it makes the conclusion more likely. If the skill level actually decides recuperation time and Roark's patients require more time, we could question her skills as a surgeon.

(C) Dr. Roark has been associated with Oceanside for three years longer than any other surgeon in the hospital.
We are talking about the average recuperation time. The years of practice in this hospital needn't have much impact.

(D) Operations which require less skill tend to require shorter periods of post-operative recuperation.
She is reputed to be talented. Hence it is quite possible that she gets the cases which need a lot of still. These cases tend to require longer periods of recuperation. This explains why the longer periods may not be indicative of less skill.

(E) Dr. Roark has operated on two other doctors at Oceanside
Irrelevant to the argument

Answer (D)
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Re: Nurse: Dr. Roark’s patients tend to require far more time for recupera   [#permalink] 12 Oct 2017, 23:31
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