Logical ReasoningDifficulty: Easy

PT14 S4 Q1 Explanation

In a yearlong study, half

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

TopicsParadox

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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

In a yearlong study, half of the participants were given a simple kit to use at home for measuring the cholesterol level of their blood. They reduced their cholesterol levels on average 15 percent more than did participants without from among people with dangerously high cholesterol levels.

What this question is testing

Paradox

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
1.

Which one of the following, if true, most helps to explain the

Answer choices

  1. Trap2% picked this

    The lower a blood-cholesterol level is, the less accurate are measurements made

  2. Trap8% picked this

    Participants with the kit were more likely to avoid foods that

  3. Trap1% picked this

    Participants with the kit used it more frequently during the first two months

  4. Trap3% picked this

    All the participants in the study showed some lowering of cholesterol levels, the most striking decreases having been achieved

  5. Correct86% picked this

    Participants using the kit reported that each reading reinforced their efforts to reduce

    Why this is right

    Answer E is correct.

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

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