- Fri Jan 21, 2011 12:00 am
#26507
Complete Question Explanation
Question #18: Must Be True. The correct answer choice is (B).
The stimulus contains a fact set. Scientists receive the most recognition when overthrowing conventional wisdom, and apparently global warming is part of that wisdom (it's "widely accepted"). Some scientists are skeptical of it, but very few find it to be unlikely - despite the apparent motivation to overthrow conventional wisdom.
The stem asks us to determine what must be true. Proceed by the process of elimination: any answer choice that does not pass the Fact Test must be immediately eliminated.
Answer choice (A) is incorrect because we have no information about the accepted moral standards for scientific debate - our evidence instead speaks of the motivations of scientists in their research. Thus, answer choice (A) cannot be proven with the information presented in the stimulus.
Answer choice (B) is the correct answer choice. We are told that scientists have a motivation to overthrow conventional wisdom, and we are also told that the idea of global warming is widely accepted - making it, effectively, conventional wisdom. We can prove, then, that most scientists have substantial motive to disprove it.
Answer choice (C) is incorrect, because the stimulus does not allow us to determine whether the evidence conclusively proves the global warming hypothesis.
Answer choice (D) is incorrect, because it falls entirely outside the scope of the fact set. It's entirely possible that the scientists in question have actually offered an alternative hypothesis.
Answer choice (E) is incorrect, because it contains an exaggeration: we cannot prove that research in global warming is primarily driven by a desire for recognition in the scientific community.
Question #18: Must Be True. The correct answer choice is (B).
The stimulus contains a fact set. Scientists receive the most recognition when overthrowing conventional wisdom, and apparently global warming is part of that wisdom (it's "widely accepted"). Some scientists are skeptical of it, but very few find it to be unlikely - despite the apparent motivation to overthrow conventional wisdom.
The stem asks us to determine what must be true. Proceed by the process of elimination: any answer choice that does not pass the Fact Test must be immediately eliminated.
Answer choice (A) is incorrect because we have no information about the accepted moral standards for scientific debate - our evidence instead speaks of the motivations of scientists in their research. Thus, answer choice (A) cannot be proven with the information presented in the stimulus.
Answer choice (B) is the correct answer choice. We are told that scientists have a motivation to overthrow conventional wisdom, and we are also told that the idea of global warming is widely accepted - making it, effectively, conventional wisdom. We can prove, then, that most scientists have substantial motive to disprove it.
Answer choice (C) is incorrect, because the stimulus does not allow us to determine whether the evidence conclusively proves the global warming hypothesis.
Answer choice (D) is incorrect, because it falls entirely outside the scope of the fact set. It's entirely possible that the scientists in question have actually offered an alternative hypothesis.
Answer choice (E) is incorrect, because it contains an exaggeration: we cannot prove that research in global warming is primarily driven by a desire for recognition in the scientific community.