Logical ReasoningDifficulty: Easy

PT123 S3 Q8 Explanation

Advertisement: Fabric-Soft leaves clothes

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

TopicsFlaw

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Stimulus

Advertisement: Fabric-Soft leaves clothes soft and fluffy, and its fresh scent is a delight. We conducted a test using over 100 consumers to prove Fabric-Soft is best. Each consumer was given one towel washed with Fabric-Soft and one towel washed without it. Ninety-nine percent Fabric-Soft is the most effective fabric softener available.

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
8.

The advertisement’s reasoning is most vulnerable to criticism on the grounds that it fails

Answer choices

  1. Out of Scope1% picked this

    any of the consumers tested are allergic to

    Whether or not consumers are allergic to fabric softeners is not relevant to the effectiveness of fabric softeners. Furthermore, ninety-nine percent of consumers preferred the Fabric-Soft towel.

  2. Out of Scope1% picked this

    Fabric-Soft is more or less harmful to the environment than other

    Harmfulness to the environment is not relevant to the argument about the most effective fabric softener available.

  3. Out of Scope3% picked this

    Fabric-Soft is much cheaper or more expensive than other

    Price is not relevant to the argument about the most effective fabric softener available.

  4. Half Scope3% picked this

    the consumers tested find the benefits of using fabric softeners worth

    Whether fabric softener is worth the expense is not relevant to the argument about the most effective fabric softener available.

  5. Correct92% picked this

    the consumers tested had the opportunity to evaluate fabric softeners other

    Why this is right

    This points out that the argument did not test Fabric-Soft against other fabric softeners.

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

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