LSAT 11 – Section 2 – Question 15
LSAT 11 - Section 2 - Question 15
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| Question QuickView |
Type | Tags | Answer Choices |
Curve | Question Difficulty |
Psg/Game/S Difficulty |
Explanation |
|---|---|---|---|---|---|---|---|
| PT11 S2 Q15 |
+LR
| Flaw or descriptive weakening +Flaw | A
13%
160
B
31%
160
C
1%
154
D
52%
167
E
4%
163
|
154 163 173 |
+Hardest | 148.469 +SubsectionMedium |
This is a flaw/descriptive-weakening question and we know this because of the question stem: The reasoning above is flawed because it...
The argument starts out by giving us a reason for why typed passwords are a security risk because they’re easy to guess or steal. There is a new system that relies on voice authentication and in a trial, we’re told that the system never gave access to someone who wasn’t supposed to have access; in other words, it kept unauthorized users out. The argument concludes that if this result above can be repeated, then there will be a way to give access to authorized people and no one else.
This kind of error pops up now and again on the LSAT. It’s basically a confusing granting access and refusing access, and how many times it does each correct. In other words, if the system denies someone who isn’t supposed to have access every single time, that doesn’t mean that the system grants access to the people who are allowed access.
Answer Choice (A) is not descriptively accurate because the comparison is not faulty. The author says that typed passwords can be taken, but someone’s voice can’t be stolen. This is out.
Answer Choice (B) is trying to be a sample size flaw - and while it is descriptively accurate, it’s not a flaw. How big does the sample size need to be for this “general” conclusion, assuming that the conclusion that “voice recognition will work” is a general conclusion in the first place.
Answer Choice (C) is descriptively accurate but it’s not a flaw. It’s just additional information on the usefulness of this feature.
Correct Answer Choice (D) is descriptively accurate and it is the flaw. While you’re not giving access to unauthorized users, what about the accuracy of giving access to people who are authorized? We need to know this latter statistic before we make the conclusion.
Answer Choice (E) is not descriptively accurate; there is nothing to suggest that the conclusion is “heavily” qualified in any way.
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LSAT PrepTest 11 Explanations
Section 1 - Logic Games
Section 2 - Logical Reasoning
- Question 01
- Question 02
- Question 03
- Question 04
- Question 05
- Question 06
- Question 07
- Question 08
- Question 09
- Question 10
- Question 11
- Question 12
- Question 13
- Question 14
- Question 15
- Question 16
- Question 17
- Question 18
- Question 19
- Question 20
- Question 21
- Question 22
- Question 23
- Question 24
- Question 26
Section 3 - Reading Comprehension
- Passage 1 – Passage
- Passage 1 – Questions
- Passage 2 – Passage
- Passage 2 – Questions
- Passage 3 – Passage
- Passage 3 – Questions
- Passage 4 – Passage
- Passage 4 – Questions
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