To discover what percentage of teenagers believe in telekinesis—the psychic ability to move objects without physically touching them—a recent survey asked a representative sample of teenagers whether they agreed with the following statement: “A person’s thoughts can influence the movement of physical objects.” But because this statement is particularly ambiguous and is amenable to a naturalistic, uncontroversial interpretation, the survey’s responses are also ambiguous.
The reasoning above conforms most closely to which one of the following general propositions?
Political scientist: Efforts to create a more egalitarian society are often wrongly criticized on the grounds that total equality would necessarily force everyone into a common mold. Equality is presumed by such critics to require unacceptably bland uniformity. But this is not so. By promoting complementary human interests, a society can achieve a greater and more prosperous equality while enhancing rather than minimizing diversity.
The political scientist’s argument proceeds by
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Some years ago, an editorial defended Unite States government restrictions on academic freedom, arguing that scientists who receive public funding cannot rightly “detach themselves from the government’s policies on national security.” Yet the same editorial criticized the Soviet government for not allowing scientists to “detach themselves from politics.” If there is a significant difference between the principles involved in each case, the editorial should have explained what that difference is.
The author of the passage criticizes the editorial by
Veterinarian: A disease of purebred racehorses that is caused by a genetic defect prevents afflicted horses from racing and can cause paralysis and death. Some horse breeders conclude that because the disease can have such serious consequences, horses with the defect should not be bred. But they are wrong because, in most cases, the severity of the disease can be controlled by diet and medication and the defect also produces horses of extreme beauty that are in great demand in the horse show industry.
The veterinarian’s argument employs which one of the following techniques?
Pure science—research with no immediate commercial or technological application—is a public good. Such research requires a great amount of financial support and does not yield profits in the short term. Since private corporations will not undertake to support activities that do not yield short-term profits, a society that wants to reap the benefits of pure science ought to use public funds to support such research.
The claim about private corporations serves which one of the following functions in the argument?
Situation: Someone living in a cold climate buys a winter coat, one which is stylish but not warmer enough to protect from the cold in order to appear sophisticated.
Analysis: People are sometimes willing to sacrifice sensual comfort or pleasure for the sake of appearances.
Which situation best describes the analysis provided for the situation above?
Annette: Dr. McMahon has discredited himself as a credible scientist by claiming that his theory about blood sugar is incontrovertible. A credible scientist must grant the possibility that a theory can be contradicted by future tests and would have to be thrown out.
Annette's conclusion about Dr. McMahon is based on:
Helen: Reading a book is the intellectual equivalent of investing money: you’re investing time, thereby foregoing other ways of spending that time, in the hope that what you learn will later afford you more opportunities than you’d get by spending the time doing something other than reading that book.
Randi: But that applies only to vocational books. Reading fiction is like watching a sitcom: it’s just wasted time.
Which one of the following most accurately describes the technique Randi uses in responding to Helen’s claims?
Lance: If experience teaches us nothing else, it teaches us that every general rule has at least one exception.
Frank: What you conclude is itself a general rule. If we assume that it is true, then there is at least one general rule that has no exceptions. Therefore, you must withdraw your conclusion.
Frank’s argument is an attempt to counter Lance’s conclusion by
Stock market analysts always attribute a sudden drop in the market to some domestic or international political crisis. I maintain, however, that these declines are attributable to the phases of the moon, which also cause periodic political upheavals and increases in tension in world affairs.
Which of the following best describes the author’s method of questioning the claim of market analysts?