Logical ReasoningDifficulty: Easy

PT127 S2 Q1 Explanation

This region's swimmers generally swim

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

TopicsFlaw

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Stimulus

This region's swimmers generally swim during the day because they are too afraid of sharks to swim after dark but feel safe swimming during daylight hours. Yet all recent shark attacks on swimmers in the area have occurred during the day, indicating that, contrary to swim here at night than during the day.

What this question is testing

Flaw

Your task

Describe the reasoning error the argument actually commits.

Common trap

Answers that name a real logical flaw the argument doesn't actually make.

Winning move

Articulate the gap in the reasoning yourself, then match it to the choice that describes that 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
1.

The reasoning in the argument is most vulnerable to criticism on the

Answer choices

  1. Too Weak3% picked this

    overlooks the possibility that some sharks are primarily

    This is too weak to undermine the argument since these sharks may or may not reside in the region.

  2. Unsupported1% picked this

    bases its conclusion on evidence from an

    The evidence does not come from the swimmers and there’s no reason to question their reliability.

  3. Out of Scope9% picked this

    overlooks the possibility that swimmers might feel anxiety caused by not being able to see one's

    This provides an alternative explanation for why swimmers would not swim at night. But it does not impact the assertion that swimming at night is not more dangerous than during the day.

  4. Too Weak1% picked this

    presumes, without providing justification, that swimmers cannot be the most knowledgeable about which times of day

    The argument does provide justification—the recent shark attacks.

  5. Correct87% picked this

    fails to take into account the possibility that the number of shark attacks at night would increase dramatically if

    Why this is right

    This presents a consideration that would weaken the argument.

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

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