Question 10: Double-blind techniques should be used whenever possible in
scientific experiments. They help prevent the misinterpretations that often arise
due to expectations and opinions that scientists already hold, and clearly
scientists should be extremely diligent in trying to avoid such
misinterpretations. So argument or facts? This is an argument. What is the conclusion? What is
the main point that this author is trying to convey in this passage and it is clearly
the first sentence that double-blind techniques should be used whenever
possible in scientific experiments. And how do we know that? Well they help
prevent misinterpretations that often arise due to expectations and opinions
that scientists already hold. And clearly scientists should be extremely diligent in trying to avoid
such misinterpretations. So, those are our premises. And now moving to the question stem:
Which one of the following most accurately expresses the main
conclusion of the argument? So another main point question. Looking for an answer choice that not
only must be true but also must be the main.
point. Again we've identified that the conclusion is the first sentence.
Double-blind techniques should be used whenever possible in scientific
experiments. So let's find an answer choice that is a direct restatement of that first sentence.
Let's take a look at (A). Scientists' objectivity me be impeded by
interpreting experimental evidence on the basis of expectations and opinions
that they already hold. And you notice that (A) is clearly implied by the passage
but it is definitely not the main point. So (A) would be eliminated.
(B) It is advisable for scientists to use double-blind techniques in as high a
proportion of their experiments as they can. And low and behold (B) here is a
direct restatement the first sentence that double-bind techniques should be
whenever possible in science experiments. And you notice in as higher proportion
of their experiment as they can used whenever possible.
Exact same idea. Direct restatement. So (B) would be the correct answer. But again just making sure here.
Checking (C): Scientists sometimes neglect to adequately consider the risk
of misinterpreting evidence on the basis of prior expectations and opinions. And you notice
that is not necessarily true. Not mentioned in our passage. So clearly not the main point.
(C) would be eliminated. Bringing me to (D): Whenever possible
scientists should refrain from interpreting evidence on the basis of previously
formed expectations and convictions. And that is obviously true from the last
sentence where it says, 'scientists should be extremely diligent in trying to avoid
such misinterpretations so whenever possible scientists should refrain from
interpreting evidence on the basis of previously formed expectations and
convictions'. But again not the main point so (D) is out. And then (E): double-blind
experimental techniques are often an effective way of ensuring scientific
objectivity. And again that is true but not the main point. So (E) would be eliminated.