Logical ReasoningDifficulty: Easy

PT113 S3 Q4 Explanation

Doctor: The practice of using this

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

TopicsMain Conclusion

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Stimulus

Doctor: The practice of using this therapy to treat the illness cannot be adequately supported by the claim that any therapy for treating the illness is more effective than no therapy at all. What must that this therapy is expensive and complicated.

What this question is testing

Main Conclusion

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
4.

Which one of the following most accurately expresses the main point of

Answer choices

  1. Unsupported Comparison5% picked this

    The therapy is more effective than no treatment at all for

    (A) This answer makes a claim about the therapy being more effective than no treatment, which doesn't align with the main point of the argument. The argument is questioning the adequacy of using effectiveness as the sole justification, rather than comparing the therapy's effectiveness to no treatment.

  2. Unsupported Comparison1% picked this

    The therapy is more effective than other forms of treatment for

    This answer introduces a comparison regarding the therapy's effectiveness against other forms of treatment, which was not discussed in the argument. The argument focuses on whether effectiveness alone is a sufficient justification for using the therapy, not on its effectiveness relative to other treatments.

  3. Unsupported Comparison6% picked this

    The therapy is more expensive and complicated than other forms of treatment

    This choice introduces a comparison with other forms of treatment that was not made in the argument.

  4. Too Strong8% picked this

    The therapy should not be used to treat the illness unless it is either

    This choice implies an absolute condition for not using the therapy, which is not stated or implied in the argument.

  5. Correct81% picked this

    The therapy’s possible effectiveness in treating the illness is not sufficient justification

    Why this is right

    This choice accurately reflects the doctor's conclusion that effectiveness on its own is not sufficient justification for using the therapy.

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

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