Reading ComprehensionDifficulty: Easy

PT134 S4 P3 Q13 Explanation

Evolutionary Psychology

A free, expert breakdown of this official LSAT Reading Comprehension question.

TopicsMain PointScience

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Passage

Passage A Evolutionary psychology has taught us to examine human behavior from the standpoint of the theory of evolution—to explain a given type of human behavior by examining how it contributes to the reproductive success of individuals exhibiting the behavior, and thereby to the proliferation of the genetic material responsible for causing an individual expends energy or other valuable resources promoting the welfare of another individual?

The answer probably lies in the psychological experiences of identification and empathy. Such experiences could have initially arisen in response to cues (like physical resemblance) that indicated the presence of shared genetic material in human ancestors. The psychological states provoked by these cues could have increased the chances of related individuals’ receiving child; genes promoting their own self-propagation may thus operate through instinctive actions that appear unselfish.

Since human ancestors lived in small, kin-based groups, the application of altruistic mechanisms to the entire group would have promoted the propagation of the genes responsible for those mechanisms. Later, these mechanisms may have come to apply to humans who are not kin when mechanisms may have arisen within a genetically “selfish” system.

Passage B Evolutionary psychology is a kind of conspiracy theory; that is, it explains behavior by imputing an interest (the proliferation of genes) that the agent of the behavior does not openly acknowledge, or indeed, is not even aware of. Thus, what seemed to be out to be your genes’ conspiracy to propagate themselves.

Such arguments can appear persuasive on the face of it. According to some evolutionary psychologists, an interest in the proliferation of genes explains monogamous families in animals whose offspring mature slowly. Human offspring mature slowly; and, at least in numerical terms, our species favors monogamous families. Evolutionary psychologists take of our interest in propagating our genes. Are they right?

Maybe yes, maybe no; this kind of inference needs to be handled with great care. There are, most often, all sorts of interests that would explain any given behavior. What is needed to make it decisive that a particular interest explains a particular behavior is that the behavior would be reasonable only after all; there must be some things that one cares for just for their own sakes.

What this question is testing

Main Point

Your task

Capture the passage's overall primary point — the claim everything else supports.

Common trap

Answers that are true but too narrow (a single paragraph) or too broad (beyond the passage's scope).

Winning move

Summarize the whole passage in one sentence first, then match it to a choice.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
13.

Which one of the following most accurately states the main point of

Answer choices

  1. Out of Scope: tends to diminish1% picked this

    Altruistic behavior is problematic for evolutionary psychology because it tends to diminish the reproductive success of

    It's never claimed that altruism tends to diminish reproductive success. The act of expending energy for someone else's welfare definitely means I'm not spending that energy on my own welfare or reproductive desires, but it's a lot stronger to say that taking some time to help others usually diminishes my chance at reproducing. Maybe potential mates are really attracted to my selflessness and so I end up having more reproductive luck as a result. More importantly, this answer sound like it's summarizing the Problem / Question from the first paragraph, when the main point answer should be focused on the Solution / Answer. The author didn't write this passage to say that altruism is tricky to explain. She wrote this passage to explain altruism.

  2. Out of Scope: new evidence9% picked this

    New evidence may explain the evolution of altruistic behavior in early humans by showing that genes

    There isn't any new evidence discussed in this passage. The author just offers a speculative explanation for altruism, without referencing any new evidence to support that explanation. Also, it wouldn't be a new idea to say that "genes promote their own self-propagation". This passage is asking the question, "given that genes promote their own self-propagation, wussup with altruism?"

  3. Wrong Emphasis: not the Answer3% picked this

    Altruistic behavior originally served evolutionary purposes that it does not serve today because humans no longer live

    This is overvaluing what gets said in the last couple sentences. Our main point should be the author's answer to the question, "Given that genes want to propagate themselves, how do we explain altruism in evolutionary benefit terms?" This answer does not tell us how we explain it. It only says that, "However it is that we do explain it, whatever purposes it did have, it no longer has".

  4. Wrong Emphasis: missing 'altruism'4% picked this

    Contrary to what critics of evolutionary psychology say, most significant types of human behavior are prompted

    Since the central topic / question of this passage was about altruism, the main point answer needs to talk about altruism.

  5. Correct84% picked this

    An evolutionary explanation of altruistic behavior may lie in the psychological states brought about in early humans by

    Why this is right

    This provides the author's Answer to her central Question: "What is the evolutionary basis for behavior like altruism, which doesn't superficially appear to be something that would help genes propagate themselves?" The 2nd paragraph begins, "The answer probably lies in the psychological experiences of identification and empathy", and continues, "the psychological states provoked by these cues could have increased .... , thereby enhancing survival and replication of the genes influencing identification and empathy". And the 3rd paragraph reminds us that these behaviors were evolving within small, kin-based groups, which helps us better understand the evolutionary utility of looking out for those around you (in a kin-based group, most of those around share some of your genes).

    Skill tested: Main Point · how this choice captures the passage's function is the move to repeat next time.

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