XAT 2019 Question Paper | Verbal Ability and Logical Reasoning

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Question 24 : Read the following paragraph and answer the question that follows:

An accurate measure of drug efficacy would require comparing the response of patients taking it with that of patients taking placebos; the drug effect could then be calculated by subtracting the placebo response from the overall response, much as a deli-counter worker subtracts the weight of the container to determine how much lobster salad you’re getting. In the last half of the 1950s, this calculus gave rise to a new way to evaluate drugs: the double-blind, placebo-controlled clinical trial, in which neither patient nor clinician knew who was getting the active drug and who the placebo. Which of the options is a wrong answer to this Question

How does a double blind ensure a better trial of a new drug?

1. It increases the overall response to the drug.
2. The patient does not know whether he/she is getting a placebo.
3. It reflects the calculus exemplified by the deli-counter episode.
4. The clinician cannot pick and choose patients to whom placebos can be administered.
5. It gives rise to an unbiased testing of drugs.

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Explanatory Answer

We have to choose the wrong option. Here the options B, C, D, E are all true. The only wrong answer is Option A. The double blind method will not improve the overall response of the drug. The contents of the drug alone can improve its response. The correct option is Choice A.

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The question is "Which of the following statements BEST captures the essence of the passage?"

Hence, the answer is It increases the overall response to the drug..

Choice A is the correct answer.