Logical ReasoningDifficulty: Easy

PT11 S4 Q3 Explanation

A group of scientists

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

TopicsFlaw

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Full official LSAT questions are available through LawHub. This page provides LSAT Lab's explanation, strategy, and review tools without republishing the full official question.

Stimulus

A group of scientists who have done research on the health effects of food irradiation has discovered no evidence challenging its safety. Supporters of food irradiation have cited this food irradiation is a safe practice.

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
3.

A flaw in the reasoning of the supporters of food irradiation is

Answer choices

  1. Trap1% picked this

    assume that the scientists doing the research set out to prove that food irradiation is

  2. Trap4% picked this

    are motivated by a biased interest in proving the practice to

  3. Trap4% picked this

    overlook the possibility that objections about safety are not the only possible objections

  4. Trap3% picked this

    neglect to provide detailed information about the evidence used to support

  5. Correct88% picked this

    use the lack of evidence contradicting a claim as conclusive evidence

    Why this is right

    Answer E is correct.

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

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