Logical ReasoningDifficulty: Hard

PT150 S3 Q22 Explanation

Commentator: Unfortunately, Roehmer's

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

TopicsFlaw

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Stimulus

Commentator: Unfortunately, Roehmer's opinion column has a polarizing effect on national politics. She has always taken a partisan stance, and lately she has taken the further step of impugning the motives of her adversaries. That style of argumentation is guaranteed not to change the minds of people with opposing viewpoints; it only since her column is just an attempt to please her loyal readers.

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
22.

The reasoning in the commentator's argument is most vulnerable to criticism on the grounds

Answer choices

  1. Wrong Flaw21% picked this

    fails to rule out the possibility that a purported cause of a phenomenon is actually an

    This is referring to the famous Causal Flaw. If we were making this objection here, we'd be arguing that the polarization of the politics in the nation is actually causing Roehmer to write her column that way (however, we are told she has always adopted a partisan/polarized stance, so that's not a very strong objection).

  2. Out of Scope: personal characteristics15% picked this

    criticizes a column merely by invoking the personal characteristics of

    The author critiques Roehmer's writing style and motivations, not any personal characteristics.

  3. Wrong Flaw3% picked this

    concludes that one event caused another merely because that event occurred immediately prior

    This is also describing the famous Causal Flaw. This says the author concludes that one event caused another; it seemed like one of the author's conclusions was that Roehmer's column has a polarizing effect on the nation. Is that based on (merely) one premise, which said that "Roehmer wrote her column immediately before the nation got more polarized"? No, we can't match up that at all.

  4. Wrong Contradiction Part22% picked this

    contradicts itself in its portrayal of

    This answer is so mean since the author did kind of contradict himself (as we'll see with E), but not in its portrayal of Roehmer's column. It said things like - always had a partisan stance - has a polarizing effect - recently started impugning motives - writes just to please her loyal readers - doesn't mind that she's just writing for her audience None of that is contradictory.

  5. Correct39% picked this

    employs a tactic at one point that it elsewhere

    Why this is right

    This is basically the famous flaw Internal Contradiction, in a really tough disguise. The author objects to Roehmer's tactic of impugning the motives of her opponents: he starts off by saying unfortunately, Roehmer is having a polarizing effect, so her recent move of saying her opponents aren't even well-intentioned is amplifying something that was already unfortunate. Meanwhile, the author impugns ROEHMER'S motives in the final sentence. "I guess Roehmer doesn't care whether she's alienating people who disagree with her. After all, she's just writing this in order to please her loyal readers (her motives are just to get cheap, partisan approval)."

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

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