Logical ReasoningDifficulty: Hard

PT138 S4 Q10 Explanation

Letter to the editor: Sites are needed for disposal

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

TopicsFlaw

Keep going in LSAT Lab

  • Save & drill this skill build targeted practice sets from questions like this one

  • Video walkthroughs watch every question solved step by step

  • 81 official LSATs as questions, timed sections & full-length tests

Full official LSAT questions are available through LawHub. This page provides LSAT Lab's explanation, strategy, and review tools without republishing the full official question.

Stimulus

Letter to the editor: Sites are needed for disposal of contaminated dredge spoils from the local harbor. However, the approach you propose would damage commercial fishing operations. One indication of this is that over 20,000 people have signed petitions use of sand-capped pits in another area.

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
10.

Which one of the following most accurately describes a reasoning flaw in

Answer choices

  1. Doesn't Distort View4% picked this

    The argument distorts the editor's view in a manner that makes that view seem more

    We don't hear anything about the editor's view other than "your approach". It's hard to distort someone's view if you just say "your view". This answer refers to a famous flaw called Straw Man. It would feel more like Person A saying "I think we should install solar panels on the roof" and Person B saying, "Well, I'm not so sure we should be spending all the company's money on green initiatives".

  2. Out of Scope: "alternative approach"19% picked this

    The argument fails to establish that the alternative approach referred to is

    The conclusion is only about whether this approach would or wouldn't damage commercial fishing operations. The author is under no burden to argue that the other approach is viable or even preferable.

  3. Out of Scope: "self-interest"4% picked this

    The argument attempts to establish a particular conclusion because doing so is in the letter writer's self-interest rather than because of any genuine concern

    We don't know anything about this writer so there's no way for us to say that this letter is in the writer's self-interest. Also, it's not inherently bad to make an argument out of self-interest. We don't have to be genuinely concerned with the truth to still say truthful things and argue in a logical manner.

  4. Correct70% picked this

    The argument's conclusion is based on the testimony of people who have not been shown

    Why this is right

    The conclusion is based on testimony: it's the testimony of 20,000 people. We have no idea who they are. They might be exiting a Whole Foods. Do they know anything about burying contaminated dredge spoils? Do they know anything about commercial fishing operations? This answer describes the Inappropriate Appeal to someone with dubious expertise on the matter.

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

  5. Out of Scope: "3rd option"3% picked this

    The argument takes for granted that no third option is available that will satisfy all

    We don't even care about the second option. The conclusion is only about whether or not the first option will damage commercial fishing operations. This answer describes the famous flaw of False Choice.

Continue the review in LSAT Lab

Save this question, watch the video walkthrough, and drill similar questions in your LSAT Lab account.

LSAT Lab

Turn this review into a targeted study plan.

Save this question, drill more like it, watch the video walkthrough, and track your progress in your LSAT Lab account.

Start practicing free