LSAT 1 – Section 4 – Question 15

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June 1991

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Question QuickView	Type	Tags	Answer Choices	Curve This gives you an idea of how this question is “curved”— in other words, what level of scorer is likely to get this question right. It shows a model of scaled LSAT score vs probability of getting the question correct. It is based on student test results for each question. The gray bar extends from the score for a 25% chance, to the score for a 75% chance of getting the question correct. The black line in the middle is the score for a 50% chance of getting the question correct. The percentage at the right is the expected chance of someone with the same score as you on that PrepTest getting that question correct	Question Difficulty	Psg/Game/S Difficulty	Explanation

Question QuickView	Type	Tags	Answer Choices	Curve This gives you an idea of how this question is “curved”— in other words, what level of scorer is likely to get this question right. It shows a model of scaled LSAT score vs probability of getting the question correct. It is based on student test results for each question. The gray bar extends from the score for a 25% chance, to the score for a 75% chance of getting the question correct. The black line in the middle is the score for a 50% chance of getting the question correct. The percentage at the right is the expected chance of someone with the same score as you on that PrepTest getting that question correct	Question Difficulty	Psg/Game/S Difficulty	Explanation
PT1 S4 Q15	+LR	Weaken +Weak	A 4% 150 B 2% 150 C 2% 143 D 2% 147 E 90% 160	120 130 142	+Easiest	144.766 +SubsectionEasier

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We should recognize that this is a weakening question, as we are introducing information which weakens reasoning in the stimulus: Which one of the following, if true, is the strongest defense against the counterexample of dogs that shake hands?

Our stimulus begins with the position of brain studies; they suggest that while humans are majority right-handed, approximately half of any given group of animals will be left-handed. Our author’s conclusion is that this finding is suspect, or in other words likely wrong, because dogs will usually shake hands with their right paw. Our job is to introduce a premise which weakens the author’s criticism of the brain studies. On to the answers:

Answer Choice (A) This wouldn’t undermine whether or not they exhibit a consistent preference for a right limb in certain cases.

Answer Choice (B) The front paw is a limb!

Answer Choice (C) This might explain the results of the brain studies (specifically why animals differ from humans), but it wouldn’t weaken the author’s criticism; why do dogs shake a paw with their right paw?

Answer Choice (D) Their ability to compensate is entirely compatible with their preferring their right limb.

Correct Answer Choice (E) If humans have a preference for their right limb, when they train their dog to shake a paw they could be training them to do so with their right paw, so that although the dogs have preferences compatible with the brain study, human influence leads to more dogs shaking with their right paw.

LSAT 1 – Section 4 – Question 15

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LSAT PrepTest 1 Explanations

Section 1 - Reading Comprehension

Section 2 - Logic Games

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

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