LSAT and Law School Admissions Forum

Get expert LSAT preparation and law school admissions advice from PowerScore Test Preparation.

 Jeremy Press
PowerScore Staff
  • PowerScore Staff
  • Posts: 1000
  • Joined: Jun 12, 2017
|
#73792
Complete Question Explanation

The correct answer choice is D.

Since most comparative reading passages ask at least a question or two about what the two authors would agree or disagree about, it is to your advantage to identify specific points of agreement or disagreement between the two passages as you give them a first read. In lines 25-26 of passage A, the author takes the quite strong position that music "had little adaptive value of its own, and most likely developed on the coattails of language." In lines 57-62 of passage B, the author takes a directly opposing position that "the emotional bonds created in the premusical mother-infant interactions we observe in Homo sapiens today—behavior whose neurological basis essentially constitutes the capacity to make and enjoy music—would have conferred considerable evolutionary advantage." The test-makers do put the burden on you to see that "evolutionary advantage" in passage B is a form of "adaptive value." Our prephrase is thus that the authors disagree on the adaptive value of music.

Answer choice (A): The relationship between brain size and time of birth is not discussed in passage A. Since we do not know passage A's position on answer choice A, we cannot say whether the two authors disagree about the answer choice.

Answer choice (B): The neurological processing of music and language is not discussed in passage B. Since we do not know passage B's position on answer choice B, we cannot say whether the two authors disagree about the answer choice.

Answer choice (C): Both authors agree that brain size increased during the course of human evolution, with the author of passage A stating in lines 20-21 that "brain size increased over the course of hominid evolution," and the author of passage B stating in lines 51-52 that "n the course of hominid evolution, brain size increased rapidly." But, we do not know for sure whether the author of passage A would commit to saying that brain size increased "rapidly" during such evolution. So we cannot be sure whether the authors would agree or disagree about answer choice C.

Answer choice (D): This is the correct answer choice. This answer fits our prephrase and also satisfies the Agree-Disagree Test. The author of passage A disagrees with this answer choice (see lines 25-26), whereas the author of passage B agrees with this answer choice (see lines 57-62).

Answer choice (E): Although passage B would agree with answer choice E, as evidenced by passage B's second paragraph, we do not know passage A's position on anything related to "mother-infant bonding," therefore we cannot know whether the authors would disagree about answer choice E.
 Khodi7531
  • Posts: 116
  • Joined: Mar 14, 2018
|
#45533
For passage A, is line 25 where it says, "Music, it would seem, had little adaptive value" .... mean the author infers/ supports the opposite?

I chose C over D. Thought they would disagree about brain size increases RAPIDLY since A says "increased over the course of evolution" ...while B says "in hominid evolution, brain size increased rapidly".


Clearly they disagree here.
 Emily Haney-Caron
PowerScore Staff
  • PowerScore Staff
  • Posts: 577
  • Joined: Jan 12, 2012
|
#45540
Hi Khodi,

For passage A, line 25, "it would seem" really means, "it seems likely, based on this evidence," or something like that. That sentence is actually telling you what the passage A author thinks! It seems like that's what tripped you up on this question.

For answer C, you're jumping to some conclusions without support from the passage. Passage A tells us it happened over the course of evolution, but says nothing about the pace; passage B says it happened rapidly; answer C includes aspects of each of these, and we have no real reason to think either author would have a strong objection to C.

Hope that helps!
 Khodi7531
  • Posts: 116
  • Joined: Mar 14, 2018
|
#45552
Yeah I most definitely didn't pick up the "it would seem" correctly in context when reading it the first time. So I get that...


But still tough about C. Not sure how anyone can just blow past it cause I think it's really supported. 1 author says it's rapid...the other, (although I know, doesn't definitively say 'slow paced' or 'not rapid') still says "over evolution"....pretty safe to assume it didn't happen in a day. It could be really tricky and assume that the evolution was "fast paced" or not, but thought the LSAT would at least test our knowledge of how evolution usually isn't concluded in a short time frame.
 Malila Robinson
PowerScore Staff
  • PowerScore Staff
  • Posts: 296
  • Joined: Feb 01, 2018
|
#45572
Hi Khodi,
For C both authors talk about brain size increasing over "the course of hominid evolution". Passage B specifies that this was a rapid increase, while Passage A is silent about the speed, but there is nothing stated should allow you to say with certainty that A would disagree that the evolution was rapid.

A: "Given their shared neurological basis, it appears that music and language evolved together as brain size increased over the course of hominid evolution."

B: "In the course of hominid evolution, brain size increased rapidly."

Keep in mind rapid evolution isn't defined here, so when you say that rapid means that it is happening over a short time frame it may not be the case. Rapid evolution can, at best, be defined here as an evolutionary process that occurs more quickly than other evolutionary processes. But that rapid evolution may still be something that takes thousands of years (or more).

Hope that helps,
Malila

Get the most out of your LSAT Prep Plus subscription.

Analyze and track your performance with our Testing and Analytics Package.