Logical ReasoningDifficulty: Hard

PT21 S3 Q17 Explanation

An editorial in the Grandburg Daily

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

TopicsPrinciple-Strengthen

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

An editorial in the Grandburg Daily Herald claims that Grandburg’s voters would generally welcome the defeat of the political party now in control of the Grandburg City Council. The editorial bases its claim on a recent survey that found that 59 percent of Grandburg’s registered out of power after next year’s city council elections.

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
17.

Which one of the following is a principle that, if established, would provide the strongest justification for

Answer choices

  1. Bad Conclusion Match7% picked this

    The way voters feel about a political party at a given time can reasonably be considered a reliable indicator of the way they will

    This doesn't help us get from "they expect X to lose" to "they welcome the idea of X losing". The way these surveyed voters feel about a political party, according to our evidence, is that they "feel like party X will be out of power". According to this answer, they will continue to feel like party X will be out of power. But this still has nothing to do with whether they welcome that notion or just begrudgingly accept that notion.

  2. Bad Conclusion Match18% picked this

    The results of surveys that gauge current voter sentiment toward a given political party can legitimately be used as the basis for making claims

    This answer is only about the results of the election, whereas the conclusion is about how voters would feel about the results of the election. If voter surveys are a sturdy basis for making predictions, then [this answer + the survey] would allow us to predict that Party X really will be out of power after next year's elections. But this isn't addressing the conclusion at all --- do the voters surveyed actually welcome that idea, or are they just predicting it will be true even though they're unhappy that it will probably be true?

  3. Bad Premise Match4% picked this

    An increase in ill-feeling toward a political party that is in power can reasonably be expected to result in a corresponding increase

    We weren't told in the evidence that there was any increase in ill-feeling towards Party X, so we have no way to use this answer choice for the situation we heard about. "An increase in ill-feeling" ? we predict bad things will happen for this party

  4. Correct63% picked this

    The proportion of voters who expect a given political possibility to be realized can legitimately be assumed to approximate the proportion of voters who

    Why this is right

    We were shopping for an answer that would get us FROM "we predict party X will lose" TO "we welcome the idea of party X losing" This answer gives us that linking idea. According to this answer choice, If 57% expect party X to lose, then approximately 57% are in favor of party X losing.

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

  5. No Impact8% picked this

    It can reasonably be assumed that registered voters who respond to a survey regarding the outcome of a future election will exercise their

    Since we have no idea whether the people surveyed are planning to vote for or against Party X, being told that they do indeed plan to vote doesn't mean anything to us. The fact that people in this survey were predicting a loss for Party X doesn't mean that they were rooting for a loss or planning to contribute to a loss by voting against Party X.

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