Logical ReasoningDifficulty: Hard

PT106 S1 Q18 Explanation

Essayist: The way science is conducted

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

TopicsMain Conclusion

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Stimulus

Essayist: The way science is conducted and regulated can be changed. But we need to determine whether the changes are warranted, taking into account their price. The use of animals in research could end immediately, but only at the cost of abandoning many kinds of research and making others very expensive. The such massive interventions would be costly and would change the character of science.

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
18.

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

Answer choices

  1. Too Strong3% picked this

    We should not make changes that will alter the character

    Too Strong: should not change Never Stated In the first sentence, the author is saying she's tolerant of making changes. In the second sentence, she's saying "we just need to be clear-eyed about whether the change is warranted and what its price would be". She seems to be insinuating in the last sentence that she would like to change the character of science, but we shouldn't need to read-in a possible belief, or state an assumption, or state an inference. We're supposed to be able to point to an explicit claim that sounds like the answer we pick. Can we point to any claim that says, "We should not make changes that alter the character of science"? No.

  2. Too Strong Unstated5% picked this

    If we regulate science more closely, we will change the character

    The author never committed to the idea that any increase in regulation will change the character of science. She only said that massive interventions (like creating fraud police) would change the character of science. There could definitely be ways to regulate science more closely that wouldn't qualify as massive interventions. More easily, the author never said what this answer choice says. If we're considering it, then we're judging these answers to much by a standard of, "Would that be something the author would also believe?" We want to judge this by the standard of, "Does this answer look like the Conclusion claim that I'm pointing at?" The author never made this claim, so we couldn't possibly point at it.

  3. Unsupported Background16% picked this

    The regulation of science and the conducting of science can

    Although this does seem like our author's opinion in the first sentence, she doesn't support this idea. Instead, she immediately pivots into a counterbalancing thought that we need to be wary of changes, taking into account their price. Her supporting ideas are all about showing how changes are offset with potential negatives. Those aren't reasons for supporting that "science can be changed". They're reasons for supporting the idea that "science should only be changed carefully / mindfully".

  4. Premise Last Idea Trap11% picked this

    The imposition of restrictions on the conduct of science would be

    This is said in the final sentence, but we're looking for a match for the second sentence. The claim that imposing restrictions would be costly is never supported. Why would restrictions be costly? - because (common sense tells us, not the author) you need to pay people to write the restrictions, people to enforce them, people to handle appeals, people to levy and process fines, etc. Any time we're doing Main Conclusion and we're about to pick an answer that sounds like the final sentence, we should think, "Am I just walking into a trap? Am I just picking this because it's the last sentence?" Sometimes the correct answer is supposed to match the last claim, because sometimes the last claim is the main conclusion, but they put the conclusion in the final sentence of a Main Conclusion paragraph less than 20% of the time.

  5. Correct66% picked this

    We need to be aware of the impact of change in science before

    Why this is right

    This seems like a decent meaning match for the 2nd sentence. We need to be aware = We need to take into account the impact of change = their price before changes are made = determine whether they're warranted It passes both our tests: 1. it is the author's Opinion 2. it is Supported (the final four sentences offer illustrative examples of why we need to be mindful of the impact of change before we do so)

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

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