Logical ReasoningDifficulty: Easy

PT125 S4 Q3 Explanation

Researcher: Any country can

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

TopicsNecessary Assumption

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Stimulus

Researcher: Any country can determine which type of public school system will work best for it by investigating the public school systems of other countries. Nationwide tests could be given in each country and other countries could has the best scores on these tests.

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
3.

Which one of the following is an assumption required by the

Answer choices

  1. Correct87% picked this

    A type of school system that works well in one country will work well in

    Why this is right

    This ensures that what works well in one country will also work well in another.

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

  2. Weakens0% picked this

    A number of children in each country in the research sample are educated

    This answer suggests that the results of one country's school system may not transfer to another country because the student populations are possibly different.

  3. Too Strong3% picked this

    If two countries performed differently on these nationwide tests, further testing could determine what features of the school

    The argument does not go so far as to assume that the reasons for different outcomes could be determined.

  4. Out of scope1% picked this

    Most countries in the research sample already administer nationwide tests to their

    The argument is about what is possible, not what is already occurring.

  5. Too Strong8% picked this

    The nationwide testing in the research sample will target as closely as possible grade levels that are comparable in the different

    So long as the tests are appropriate for the grade level at which they are administered, the nationwide testing need not target as closely as possible comparable grade levels.

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