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CR OF LSAT
In clinical trials of new medicines, half of the subjects receive the drug being tested and half receive a physiologically inert substance—a placebo. Trials are designed with the intention that neither subjects nor experiments will find out which subjects are actually being given the drug being tested. However, this intention is frequently frustrated because_________.
Which one of the following, if true, most appropriately completes the explanation?
a) Often the subjects who receive the drug being tested develop symptoms that the experimenters recognized as side effects of the physiologically active drug.
b) Subjects who believe they are receiving the drug being tested often display improvements in their conditions regardless of whether what is administered to them is physiologically active or not.
c) In general, when the trial is intended to establish the experimental drug’s safety rather than its effectiveness, all of the subjects are healthy volunteers.
d) When a trial runs a long time, few of the experiments will work on it from inception to conclusion.
e) The people who are subjects for clinical trials must, by law, be volunteers and must be informed of the possibility that they will receive a placebo.
The answer is A.
目的是让人分不清那些SUJECTS用了药
A:药疗和心理治疗都表现出相同的symptoms,因此无法辨认出究竟是谁接受了药疗。这正好满足了experiment的初衷。
????我哪里理解差错了? |
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