Logical ReasoningDifficulty: Medium

PT5 S3 Q17 Explanation

Being articulate has been equated

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

TopicsNecessary Assumption

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Stimulus

Being articulate has been equated with having a large vocabulary. Actually, however, people with large vocabularies have no incentive for, and tend not to engage in, the kind of creative linguistic self-expression that is required when no available words seem adequate. to using language in a truly articulate way.

What this question is testing

Necessary Assumption

Your task

Find the assumption the argument requires in order for its conclusion to hold.

Common trap

Answers that would help the argument but aren't strictly required (sufficient, not necessary).

Winning move

Negate each choice — the right one breaks the argument when negated.

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

The question
17.

Which one of the following is an assumption made in

Answer choices

  1. Correct68% picked this

    When people are truly articulate, they have the capacity to express themselves in situations in which

    Why this is right

    This directly speaks to the unstated assumption that "if these people with big vocabs aren't learning to be able to express themselves when current vocabulary doesn’t cut it, then they aren't becoming truly articulate." Contraposed, that looks like "If truly articulate, then can express themselves when current vocab doesn't cut it."

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

  2. Reversal (if anything)9% picked this

    People who are able to express themselves creatively in new situations have little incentive to

    The argument was saying "people with big vocabs have little incentive to learn to express themselves creatively". So this flips that claim into "people who can express themselves creatively have little incentive to develop a big vocab". The argument isn't about people who can express themselves creatively, other than the author's assumption that we would potentially think of those people as truly articulate. She doesn't need to assume they have no incentive to acquire a big vocabulary.

  3. Irrelevant Comparison6% picked this

    The most articulate people are people who have large vocabularies but also are able to express themselves creatively

    We can tell this is treading into "Relative vs. Absolute" distortion. The argument was about whether someone was / wasn't truly articulate. The argument is never using relative language like the most articulate. The author might think that being truly articulate hinges purely on creative expression when the situation demands it. She doesn't have to think that having a big vocab on top of that elevates your articulation game.

  4. Out of Scope: educating people6% picked this

    In educating people to be more articulate, it would be futile to try to increase the

    (D) introduces the idea of education, which isn’t explored in the original argument. It could align with the author’s thoughts, but it isn’t requisite to the argument made.

  5. Opposite (if anything)11% picked this

    In unfamiliar situations, even people with large vocabularies often do not have specifically

    The author doesn't have to assume that there are cases where even a large vocab would require creative self-expression since no known words suffice. If anything, that would hurt the author's case, because it would mean that even if you have a large vocab, you're still forced to practice creatively self-expressing yourself when existing words don't suffice. She is telling a story where people with big vocabs don't have to practice that and thus don't develop that skill and thus aren't truly articulate.

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