Logical ReasoningDifficulty: Easy

PT15 S2 Q4 Explanation

A recent study monitored the blood pressure

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

TopicsParallel Flaw

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Stimulus

A recent study monitored the blood pressure of people petting domestic animals in the laboratory. The blood pressure of some of these people lowered while petting the animals. Therefore, for any one of the people so affected, person having a lower average blood pressure.

What this question is testing

Parallel Flaw

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
4.

The flawed pattern of reasoning in the argument above is most similar to that in which one

Answer choices

  1. Trap7% picked this

    Because a single dose of a drug acts as a remedy for a particular ailment, a healthy person can ward off that

  2. Trap0% picked this

    Because buying an automobile is very expensive, people should hold on to an automobile, once bought, for as long as it can

  3. Trap2% picked this

    Since pruning houseplants is enjoyable for some people, those people should get rid of houseplants that do

  4. Correct90% picked this

    Since riding in a boat for a few minutes is relaxing for some people, those people would be more relaxed generally

    Why this is right

    Answer D is correct.

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

  5. Trap1% picked this

    Since giving a fence one coat of white paint makes the fence white, giving it two coats of white paint

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