Logical ReasoningDifficulty: Hard

PT137 S3 Q20 Explanation

Principle: One should criticize

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

TopicsPrinciple-Strengthen

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Stimulus

Principle: One should criticize the works or actions of another person only if the criticism will not seriously harm the person criticized and one does so in benefiting someone other than oneself.

Application: Jarrett should not have criticized Ostertag's essay in front of the class, since the defects in it were so obvious benefited no one.

What this question is testing

Principle-Strengthen

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
20.

Which one of the following, if true, justifies the above application of

Answer choices

  1. Correct52% picked this

    Jarrett knew that the defects in the essay were so obvious that pointing them out

    Why this is right

    This establishes the 2nd of the two criteria.

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

  2. Does Not Establish Either Criterion11% picked this

    Jarrett's criticism of the essay would have been to Ostertag's benefit only if Ostertag had been unaware of the defects in

    We are looking for "seriously harmed Ostertag" or "Jarrett never thought it would benefit anyone else". This answer is not coming close to giving us either of those ideas.

  3. Does Not Establish Either Criterion12% picked this

    Jarrett knew that the criticism might

    We're looking for "seriously harmed Ostertag" or "Jarrett never thought it would benefit anyone else". This answer comes close to both, but "might antagonize" is not the same as "did seriously harm". And the fact that J knew that the criticism might annoy Ostertag doesn't settle the issue of whether Jarrett thought the criticism would benefit someone else. The person benefiting doesn't have to be the one critiqued. It's possible that Jarrett thought that criticizing Ostertag might annoy Ostertag but benefit one of the other writers in the class who could learn to avoid Ostertag's errors.

  4. Does Not Establish Either Criterion12% picked this

    Jarrett hoped to gain prestige by

    This doesn't come close to getting us "seriously harmed Ostertag". It's closer to "Jarrett never thought it would benefit anyone else", but you can hope for more than one thing with a given action. Jarrett might have hoped to gain prestige and hoped to benefit someone else. If this said "Jarrett only hoped to gain prestige by criticizing Ostertag", then it would guarantee us that Jarrett did not hope to benefit someone else.

  5. Does not Establish Either Criterion13% picked this

    Jarrett did not expect the criticism to be to

    This is close to establishing that "Jarrett never thought it would benefit anyone else", but this only talks about whether it would benefit Ostertag. It's possible that Jarrett didn't think Ostertag would benefit from the critique but still thought other classmates would. The rule is about whether someone other than the critic would benefit, but the rule doesn't say it needs to be the person being critiqued who benefits.

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