LSAT 111 – Section 4 – Question 08

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October 2001

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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
PT111 S4 Q08	+LR	Flaw or descriptive weakening +Flaw Link Assumption +LinkA Lack of Support v. False Conclusion +LSvFC	A 2% 150 B 1% 157 C 1% 160 D 0% 155 E 97% 165	124 133 142	+Easiest	144.86 +SubsectionEasier

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J.Y.’s explanation

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It is widely believed that by age 80, perception and memory are each significantly reduced from their functioning levels at age 30. However, a recent study showed no difference in the abilities of 80-year-olds and 30-year-olds to play a card game devised to test perception and memory. Therefore, the belief that perception and memory are significantly reduced by age 80 is false.

Summarize Argument: Counter-Position

The author concludes that the belief that perception and memory are significantly reduced by age 80 is false. She supports this with a recent study showing no difference in the abilities of 80-year-olds and 30-year-olds to play a card game that tests perception and memory.

Identify and Describe Flaw

The author assumes that perception and memory aren't greatly reduced by age 80 simply because 80-year-olds performed just as well as 30-year-olds on the card game. However, she doesn't consider that the game might only test basic levels of perception and memory. If the game requires only a low level of these abilities, the author can't conclude that perception and memory aren't reduced by age 80.

the study’s card game does not test cognitive abilities other than perception and memory

This doesn’t impact the argument, so failing to consider it can’t be a flaw. Because the argument only addresses perception and memory, whether the card game tests other cognitive abilities is irrelevant.

card games are among the most difficult cognitive tasks one can attempt to perform

We don’t know if this general statement about card games applies to the particular card game designed to test perception and memory. But even if it does, (B) might strengthen the argument by suggesting that 80-year-olds are just as good as 30-year-olds at such a difficult task.

perception and memory are interrelated in ways of which we are not currently aware

This doesn’t impact the argument, so failing to consider it can’t be a flaw. The card game showed similar levels of perception and memory between 80-year-olds and 30-year-olds. Whether perception and memory are connected in unknown ways doesn’t affect this outcome.

the belief that 80-year-olds’ perception and memory are reduced results from prejudice against senior citizens

Even if this is true, it doesn't point out a flaw in the author’s argument because she’s trying to disprove this belief.

playing the study’s card game perfectly requires fairly low levels of perception and memory

The author fails to consider the possibility that the game might only test basic levels of perception and memory. If this is true, then the game would reveal very little about the levels of perception and memory in 80-year-olds vs. in 30-year-olds.

LSAT 111 – Section 4 – Question 08

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J.Y.’s explanation

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LSAT PrepTest 111 Explanations

Section 1 - Logical Reasoning

Section 2 - Reading Comprehension

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

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