Prep 2012 CR- 46

S2CRMBHH

A study of high blood pressure treatments found that certain meditation techniques and the most commonly
prescribed drugs are equally effective if the selected treatment is followed as directed over the long term. Half the
patients given drugs soon stop taking them regularly, whereas eighty percent of the study's participants who were
taught meditation techniques were still regularly using them five years later. Therefore, the meditation treatment is
the one likely to produce the best results.
Which of the following, if true, most seriously weakens the argument?
A.  eople who have high blood pressure are usually advised by their physicians to make changes in diet that have
been found in many cases to reduce the severity of the condition.
B.  The participants in the study were selected in part on the basis of their willingness to use meditation techniques.
C.  Meditation techniques can reduce the blood pressure of people who do not suffer from high blood pressure.
D.  Some of the participants in the study whose high blood pressure was controlled through meditation techniques
were physicians.
E.  Many people with dangerously high blood pressure are unaware of their condition.

正解是B，尽管事後看，用删去法可能可以做的出来。

但B的逻辑性还是搞不太清楚，请各位神人指点一二

S2CRMBHH

自已頂一下，Is anybody here to help me ??

tudouchaoren90

BG: 对于高血压病患：长期的meditation的效果=长期的吃药的效果
公式：meditation*时间1=药药切克闹*时间2
Premise：一半吃药的抽样患者经常停药；70%使用meditation技术的抽样患者能够保持治疗----->（时间1>时间2）
conclusion： meditation 技术效果要更好（潜含义：因为患者对于meditation的使用有很长的延续性）

逻辑推理上的gap在于： 将抽样患者（实验）--扩大---> 所有患者（生活），这是不对的
B选项：如果所有meditation抽样人群都是信赖这项技术，但是样本外的人群不信来不欣赏这种技术而导致stop taking it regularly，或者说没有使用延续性的potential------>meditation效果不一定更好， weaken

kwkwman2

题目很简单
A study of high blood pressure treatments found that certain meditation techniques and the most commonly prescribed drugs are equally effective if the selected treatment is followed as directed over the long term. Half the patients given drugs soon stop taking them regularly, whereas eighty percent of the study's participants who were taught meditation techniques were still regularly using them five years later. Therefore, the meditation treatment is the one likely to produce the best results.

读完题目两个隐含条件
第一. there is no other factor that would reduce the severity of high blood pressure for people who practice meditation (如果练习meditation 的人同时还吃素，那肯定会削弱meditation是最好的结论）

第二 哪一种方法用的时间越长，那么哪一种方法就更有效
Half the patients given drugs soon stop taking them regularly, whereas eighty percent of the study's participants who were taught meditation techniques were still regularly using them five years later. Therefore, the meditation treatment is the one likely to produce the best results. 可以看得出因为meditation 用的时间比吃药长，作者下结论说meditation 比吃药有效，从而变成最有效。

A不对的原因很简单就是out of scope 因为 People who have high blood pressure are usually advised by their physicians to make changes in diet that have been found in many cases to reduce the severity of the condition.
People who have high blood pressure 包括（只是吃药的，只是练习meditation，什么都没做的，两种都做得）在这种况下怎么削弱？除非说练习meditation的高血压病人的人还同时吃素，那么就可以削弱了，因为有他因

B正确 参加者都是选那些愿意使用的meditation的人，那么无可避免愿意使用的meditation的人使用时间有可能会长刚好切合第二个assumption。而且这个结果是实验者自己特意有偏向地选取那些会用得时间长的人最为实验对象。结果肯定是有预设性的

梦季

看一下！