Logical ReasoningDifficulty: Hard

PT103 S2 Q19 Explanation

Anthropologist: Violence is an

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

TopicsMust be True

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Stimulus

Anthropologist: Violence is an extreme form of aggression, and is distinct from the self-expression sufficient for survival under normal conditions. Human beings in certain situations react to unpleasant stimuli with violence—but only culture to react in this manner.

What this question is testing

Must be True

Your task

Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.

Common trap

Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.

Winning move

Predict what a right answer must do, then test each choice against the conclusion-evidence gap.

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

The question
19.

Each of the following can be logically inferred from the anthropologist’s

Answer choices

  1. Must Be True11% picked this

    Not all aggression is

    Since violence is an extreme form of aggression, there must be some less extreme form of aggression that is not violent.

  2. Correct66% picked this

    The self-expression required for survival is

    Why this is right

    We know from the first sentence that "the self-expression required for survival is generally not violent", since we're told that violence is distinct from that self-expression. But that self-expression might still be aggressive. Violence is an extreme form of aggression, but maybe a moderate form of aggression (which isn't violent) is the self-expression required for survival in general conditions.

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

  3. Must Be True4% picked this

    Some behaviors are influenced by the cultures in which human

    The last sentence says that the behavior of reacting to unpleasant stimuli with violence is a direct result of having been conditioned (i.e. influenced) by our culture. Some = at least one, so we have proof that at least one behavior in influenced by our culture.

  4. Must Be True9% picked this

    In normal circumstances, human beings can survive by

    This can be derived from the first sentence. Since violence is distinct from the self-expression that, in normal circumstances, is sufficient for survival, we can say that in normal circumstances we can survive without violence.

  5. Must Be True10% picked this

    Violent behavior is a product of one’s

    This is close to one of the inferences we predicted. The last sentence is saying that we react to certain stimuli with violence, but only because we've been conditioned by our culture to react this way. Thus, that violent behavior is a product of our cultural environment. I'll be honest -- I'm dismayed by how strongly this is worded. I think the limits of what can be properly inferred would be something like, "At least some violent behavior is a product of one's cultural environment". I don't like how this answer sounds more categorical, as though "all violent behavior" were a product of one's environment. Technically we haven't talked about what causes humans to react to neutral or pleasant stimuli with violence -- maybe that violent behavior isn't a product of cultural conditioning. But sometimes on problems like Must Be True or Sufficient Assumption, which by definition should have mathematical purity / absolute truth, we still have to just pick the best available answer. (E) is more supportable than the correct answer is.

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