Logical ReasoningDifficulty: Hard

PT139 S1 Q23 Explanation

Anthropologist: Every human culture

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsMethod

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Stimulus

Anthropologist: Every human culture has taboos against eating certain animals. Some researchers have argued that such taboos originated solely for practical reasons, pointing out, for example, that in many cultures it is taboo to eat domestic animals that provide labor and that are therefore worth more alive than dead. But that conclusion taboos might then have led people to find other uses for those animals.

What this question is testing

Method

Your task

Describe how the argument proceeds — the technique it uses to reach its conclusion.

Common trap

Answers that describe a method the argument doesn't actually use.

Winning move

Track the role each statement plays, then match that to the choice describing the same moves.

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

The question
23.

In the argument, the

Answer choices

  1. Correct52% picked this

    calls an explanation of a phenomenon into question by pointing out that observations cited as evidence supporting it are also compatible with

    Why this is right

    When we see Does THIS by doing THAT The "by" shows us the evidence, the other part is the conclusion. A lawyer proves GUILT by producing evidence. Does this answer match the conclusion and evidence? Did the author's conclusion call an explanation of a phenomenon into question? - Yes. She said that explaining the phenomenon of food taboos by saying that they are for practical reasons is an unwarranted conclusion. Did the evidence point out that the cited evidence is compatible with an alternative explanation? - Yes. She said, "Taboos might instead have arisen for [other] reasons". Some of the cited evidence for "food taboos exist for practical reasons" is that there are taboos against animals that provide labor, i.e. that are practically useful. Our author explains that "the taboos may have come first, (for religious reasons), and then people found uses for those animals second".

    Skill tested: Method · how this choice captures the argument's function is the move to repeat next time.

  2. Bad Conclusion Match Too Strong: false3% picked this

    establishes that an explanation of a phenomenon is false by demonstrating that the evidence that had been cited in support

    Does the conclusion establish that an explanation is false? No, she only says that it's unwarranted. That means "you haven't convinced me you're right yet". It doesn't mean, "I'm convinced you're wrong". We can stop reading this answer at this point. The second half almost works. "Demonstrating" is too strong. Raising an alternate explanation possibility is softer than "demonstrating". But otherwise, the second half is probably fair. Any author saying, "How do you know it's X? Couldn't it be Y?" apparently believes that the evidence for X was inadequate.

  3. Trap24% picked this

    rejects the reasoning used to justify a hypothesis about the origins of a phenomenon, on the grounds that there exists another, more plausible hypothesis

    Bad Premise Match Too Strong: more plausible Does the author reject the reasoning used to justify a hypothesis? Sure. Our author is not persuaded (conclusion is unwarranted) by the researchers' hypothesis that the origins of food taboos was practical concerns. Is our author's evidence that there is another, more plausible hypothesis? No, our author doesn't indicate that it's more plausible. If an alternate hypothesis is even equally plausible, it serves the same effect: it shows that someone was hasty in concluding a certain causal story, when other possible causal stories haven't been ruled out. Our author brings up her alternate explanation by saying "taboos might instead have arisen for symbolic reasons".

  4. Bad Conclusion / Premise Match3% picked this

    argues in support of one explanation of a phenomenon by citing evidence incompatible with

    Does our author's conclusion argue in support of one explanation? No, this is like (C) calling our author's alternate explanation "the more plausible" option. The author is agnostic about which causal story is correct. She is concluding that "an inference is unwarranted". Unwarranted doesn't mean wrong; it just means too hastily drawn, unproven. She also doesn't cite evidence that's incompatible (i.e. contradictory) to the researchers' evidence. In fact, as the correct answer reminds us, her alternate explanation is completely compatible with the author's evidence about food taboo animals often being useful animals used for labor.

  5. Too Strong: argues different sequence19% picked this

    describes a hypothesis about the sequence of events involved in the origins of a phenomenon, and then argues that those events

    There is a hypothesis about the sequence of events involved in the origins of the food taboo phenomenon: Researchers hypothesis people realize horses are useful. people invent a food taboos for horses, because they're worth more alive than dead. The author talks about a different sequence, sort of: people invent a food taboo for horses, for symbolic and ritualistic reasons, and then people realize horses (which they can't kill because of this taboo) are useful. Those aren't quite the same events in reverse. The useful / taboo relationship is switched, but the author's explanation involves a particular event ("taboo arose for symbolic reasons") that isn't in the original story. Perhaps the easiest way to get rid of this without thinking too hard is again to just understand the noncommittal strength of arguing "that conclusion is unwarranted". All a person needs to do to win that conversation is create some doubt about the original conclusion. The author isn't personally invested in this alternative hypothesis; she's just bringing it up as a possibility. We can say that she presents the possibility that some of those events were in a different sequence, but saying that she argues they were in a different sequence is ascribing to her a conclusion that is confidently choosing one possibility.

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