Logical ReasoningDifficulty: Easy

PT124 S3 Q5 Explanation

Brain-scanning technology provides

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

TopicsMain Conclusion

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Stimulus

Brain-scanning technology provides information about processes occurring in the brain. For this information to help researchers understand how the brain enables us to think, however, researchers must be able to rely on the accuracy of the verbal reports given by subjects while their brains are being scanned. Otherwise brain­ scan data gathered about at that moment, but instead about some different set of thoughts.

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
5.

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

Answer choices

  1. Too Strong0% picked this

    It is unlikely that brain-scanning technology will ever enable researchers to understand how the brain

    The argument lays down a requirement of researchers benefiting from brain-scanning technology, but this goes too far and completely rules out researchers benefiting in such a way.

  2. Too Strong2% picked this

    There is no way that researchers can know for certain that subjects whose brains are being scanned are accurately

    The argument doesn’t say whether the reports are accurate, but it does connect the reports being accurate with researchers using brain-scanning technology to understand how the brain enables us to think.

  3. Too Strong2% picked this

    Because subjects whose brains are being scanned may not accurately report what they are thinking, the results of brain-scanning research should

    The argument doesn’t say whether subjects whose brains are being scanned accurately report what they are thinking.

  4. Unsupported6% picked this

    Brain scans can provide information about the accuracy of the verbal reports of subjects whose

    The argument does not suggest that anything can provide information about the accuracy of the verbal reports.

  5. Correct89% picked this

    Information from brain scans can help researchers understand how the brain enables us to think only if the verbal reports of those whose

    Why this is right

    This best paraphrases the argument’s conclusion.

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

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