PrepTest 130
[lcid:3616] Prep Test 130 LSAT — Logical Reasoning — S1
Logical reasoning
Question prompt
When a society undergoes
Remaining source text redacted.
Why the credited answer is right
Credited answer: C
The notes below walk through why it fits the stem and how to eliminate the rest.
Question Type
Strengthen with Necessary Premise Questions
Answer choices
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AA society's younger members Remaining source text redacted.
Why choice A is not credited
Incorrect. The awareness of the younger members towards societal change isn't required for this argument to work. They just need to be able to tell if the advice of their elders is relevant to them. -
BHow much deference young Remaining source text redacted.
Why choice B is not credited
Incorrect. This answer is very close, but it connects deference from the conclusion to the practicality of the advice. The relevant connection is between the value they place in that advice and deference. -
CThe deference young people Remaining source text redacted.
Why choice C matches the stem
Correct. Argument or Facts:
Argument
Valid or Flawed:
Flawed
Question Type:
Strengthen with Necessary Premise
Stimulus Summary:
Society slowly changes—The young value the advice of the oldSociety quickly changes—The young don't value the advice of the oldTherefore: The speed of societal change can be measured through deference the young pay the old.
Answer Anticipation:
The premises and conclusion here are both about the speed of societal changes, so there's no gap there. However, the conclusion also discusses deference paid to the old by the young, while that term is nowhere to be seen in the premises. Instead, the premises talk about the young valuing the advice of their elders. The argument is jumping between those concepts—while they're related, they're not the same, and so the correct answer should connect them.
Answer Explanation:
This answer choice makes the connection that the argument relies on but is lacking from the premises. If deference doesn't vary with value, then the argument falls apart as deference can no longer be connected to societal change.
Key Takeaway:
It's amazing how frequently new terms show up in the conclusion of Strengthen with Necessary/Sufficient Assumption question arguments. Always be on the lookout for them, as they provide a first step into finding the gap in the argument. -
DThe faster a society Remaining source text redacted.
Why choice D is not credited
Incorrect. The argument is about how the youths view the advice of elders ("young people think . . . "), not how relevant it actually is, so this answer is out of scope. -
EYoung people value their Remaining source text redacted.
Why choice E is not credited
Incorrect. A connection between the value placed in advice and relevance is already established in the stimulus, but it's a connection between value and how relevant the advice is thought to be, so this answer isn't a necessary connection.
What this tests
Discussion
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Negation to answer choice B 2 replies
Started by Mazen
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logical opposite 1 reply
Started by Abigail-Okereke
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Explain 2 replies
Started by KDA86