Logical ReasoningDifficulty: Medium

PT113 S4 Q15 Explanation

Editorial: The threat of harsh

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

TopicsNecessary Assumption

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Stimulus

Editorial: The threat of harsh punishment for a transgression usually decreases one’s tendency to feel guilt or shame for committing that transgression, and the tendency to feel guilt or shame for committing a transgression reduces a person’s tendency to commit transgressions. Thus, increasing the amplify people’s tendency to ignore the welfare of others.

What this question is testing

Necessary Assumption

Your task

Find the assumption the argument requires in order for its conclusion to hold.

Common trap

Answers that would help the argument but aren't strictly required (sufficient, not necessary).

Winning move

Negate each choice — the right one breaks the argument when negated.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
15.

Which one of the following is an assumption required by the

Answer choices

  1. Out of Scope: morality3% picked this

    Legal penalties do not determine the morality of

    At no point in the argument did we discuss morality, so we have no idea what the author thinks about this.

  2. Correct71% picked this

    At least some actions that involve ignoring the welfare of others

    Why this is right

    This connects the language in the premise "more severe penalties --> more transgressions" to the language in the conclusion, "more severe penalties --> more ignoring welfare of others". We love weak language on Necessary Assumption, because when you negate weak language you get a strong idea, and our task on Nec Assump is "which answer, when negated, most weakens". When we negate "some" (which means "one or more"), we get "none" (which means "zero"). So the negation of this answer says, "ZERO actions that involve ignoring the welfare of others are transgressions." They NEVER overlap. You could do something that increases the likelihood of transgressions and that wouldn't mean any increase in ignoring the welfare of others, since transgressions are never actions ignoring the welfare of others.

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

  3. Too Strong: tend to18% picked this

    People who are concerned about threats to their own well-being tend to be less concerned about

    Potential criminals who feel the threat of a legal penalty are probably "concerned about a threat to their own well-being". But they are just one slice of that crowd. I'm not going to be committing any crimes, but I'm still concerned about a threat to my well-being (coronavirus, among other things). It's pretty safe to say that almost everyone is concerned about threats to their well-being. Is the author assuming that people tend to be more concerned about themselves than about the welfare of others? That's way too broad. It goes well beyond the scope of this argument, which is only about the effect raising legal penalties will have on people ignoring the welfare of others.

  4. Out of Scope3% picked this

    The threat of harsh punishment deters people from committing transgressions only if this threat is at

    Out of Scope: Threat vs. carried out Too Strong: only if This conditional answer accuses the author of having made this argument move: Threat is never ? threat of harsh punishment carried out doesn't deter transgressions Our author never made that move.

  5. Too Strong: everyone5% picked this

    Everyone has at least some tendency to feel guilt or shame for committing

    Our author doesn't have to assume that every single person in existence has at least some tendency to feel guilt or shame for committing bad transgressions. It doesn't hurt her argument if some sociopath named Gus feels no guilt or shame for his transgressions. The conclusion is so weakly worded, "increasing severity may increase tendency to ignore welfare", that the author is certainly not committing herself to any strong ideas.

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