PrepTest 155
[lcid:3717] Prep Test 155 LSAT — Logical Reasoning — S2
Logical reasoning
Question prompt
Psychiatrist: Psychological stress is
Remaining source text redacted.
Why the credited answer is right
Credited answer: B
The notes below walk through why it fits the stem and how to eliminate the rest.
Question Type
Errors in Reasoning Questions
Answer choices
-
AIt presumes without justification Remaining source text redacted.
Why choice A is not credited
Incorrect. Close, but not quite! The argument assumes that two effects can causally influence each other. This answer says that two causes can influence one another. -
BIt presumes, merely on Remaining source text redacted.
Why choice B matches the stem
Correct. Argument or Facts:
Argument
Valid or Flawed:
Flawed
Question Type:
Errors in Reasoning
Stimulus Summary:
Stress causes bad feelings and bad health. So dealing with the bad feelings will help fix the bad health.
Answer Anticipation:
This is a weird argument in that the connection drawn in the conclusion is so outside the scope of where the arguments usually go. The conclusion suggests that the two causes of stress are themselves causally linked. There's no reason to think that's the case, so the correct answer should state something to that effect.
Answer Explanation:
This is the answer that we anticipated! Compare it to (A) to see the slight difference that makes that one wrong and this one right.
Key Takeaway:
Even if a question doesn't fall into a common pattern, focusing on the relevant logical elements—here, the causation—can help you find your answer. -
CIt confuses two causes Remaining source text redacted.
Why choice C is not credited
Incorrect. This answer mixes up the causes and effects. The stimulus says that two effects impact each other, not that two necessary causes are sufficient. There's no sufficient/necessary language in the stimulus. -
DIt takes for granted Remaining source text redacted.
Why choice D is not credited
Incorrect. Like many of the other answers, this mixes up the stimulus, which talks about two effects, not two causes. -
EIt takes for granted Remaining source text redacted.
Why choice E is not credited
Incorrect. First, the language here is too strong in saying that something would be eliminated, when the stimulus just mentions something would improve. Second, the argument never establishes that the bad feelings causally contribute to bad health; that's the assumption.
What this tests
Discussion
-
Explanation? 3 replies
Started by Eaten