PrepTest 107
[lcid:3526] Prep Test 107 LSAT — Logical Reasoning — S3
Logical reasoning
Question prompt
Astorga's campaign promises are
Remaining source text redacted.
Why the credited answer is right
Credited answer: E
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
-
AIf she is elected Remaining source text redacted.
Why choice A is not credited
Incorrect. The argument doesn't require that Astorga is incapable of carrying out her promises, just that she doesn't intend to carry them out. -
BThe opinion polls on Remaining source text redacted.
Why choice B is not credited
Incorrect. What voters actually want is out of scope. Even if the polls are wrong, Astorga could still use them to make promises she doesn't intend to keep. -
CMost voters are unlikely Remaining source text redacted.
Why choice C is not credited
Incorrect. The argument is about promises and intent—what Astorga will do if she becomes mayor. As such, it's not about whether she actually will become mayor. -
DAstorga has no strong Remaining source text redacted.
Why choice D is not credited
Incorrect. If anything, this undercuts the argument by suggesting that Astorga will just do what's popular, not what she wants—and therefore she very well might carry through with the promises of popular policies. -
EAstorga does not actually Remaining source text redacted.
Why choice E matches the stem
Correct. Argument or Facts:
Argument
Valid or Flawed:
Flawed
Question Type:
Strengthen with Necessary Premise
Stimulus Summary:
Astorga's promising what the polls tell her voters want, so she's not saying what she'd actually do as mayor.
Answer Anticipation:
Strengthen with Necessary Premise questions will frequently bring up new concepts in the conclusion. When this happens, you should see what concept from the premises the author believes is enough to justify that conclusion, and then find an answer connecting the new concept in the conclusion to the established one in the premises.
Here, the conclusion brings up a new concept—what Astorga will actually do as mayor. Specifically, it says that voters aren't being told what she'd actually do. The premises, however, talk about what she's promising to do—she's promising what the opinion polls say are popular.
That's assuming, then, that Astorga doesn't intend to do what the opinion polls are telling her is popular! She may very well govern the same way she campaigned—by letting opinion polls decide her opinions. Let's find an answer choice stating that she intends to do something different from the polls/her campaign promises.
Answer Explanation:
This answer disconnects the promises based on opinion polls from Astorga's actual intent—which is what the argument requires. If Astorga does intend to do what polls tell her to do and thus what she's promising in her campaign, then the voters are being told what she intends.
Key Takeaway:
Always be on the lookout for new concepts in the conclusion of Strengthen with Necessary Premise questions. Identifying one can focus you on one half of the missing connection in the argument.
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