Logical ReasoningDifficulty: Easy

PT121 S1 Q13 Explanation

Psychology professor: Applied statistics should

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

TopicsFlaw

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Stimulus

Psychology professor: Applied statistics should be taught only by the various social science departments. These departments can best teach their respective students which statistical methodologies are most useful for their discipline, data and the results of experiments.

Mathematics professor: I disagree. My applied statistics course covers much of the same material taught in the applied statistics courses in social science departments. In fact, same textbook as those courses!

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
13.

Which one of the following most accurately describes a questionable aspect of the reasoning in the mathematics professor’s response

Answer choices

  1. Irrelevant Relationship2% picked this

    The response gives no evidence for its presumption that students willing to take a course in one department would choose

    Whether students would be willing to take the course in several departments is not relevant to whether students are best served by taking the course within their own department.

  2. Irrelevant Relationship6% picked this

    The response gives no evidence for its presumption that social science students should have the same competence in

    No comparison is made between the level of competence in statistics social science students should have relative to mathematics students.

  3. Correct81% picked this

    The response does not effectively address a key reason given in support of the

    Why this is right

    This correctly describes the issue in the mathematics professor's response to the psychology professor.

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

  4. Wrong Flaw1% picked this

    The response depends for its plausibility on a personal attack made against

    This describes an ad hominem attack. The mathematics professor, however, does not personally attack anyone.

  5. Reversal11% picked this

    The response takes for granted that unless the course textbook is the same the course content will

    While the mathematics professor does assume that using the same textbook implies that the course content is the same, but this answer reverses that relationship.

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