LSAT 43, Logical Reasoning I, Q23, LSATHacks

LR Question 23 Explanation, by LSATHacks

QUESTION TEXT: Toxicologist: Recent research has shown that dioxin causes cancer…

QUESTION TYPE: Role in Argument

CONCLUSION: Dioxin should be banned.

REASONING: It’s harmful in rats, so it’s implied that it could also cause cancer in humans.

ANALYSIS: That dioxin causes harm to rats is used as an analogy, to show that it could be harmful in humans.

___________

1. Tempting, but the hazard is actually dioxin causing cancer in humans. That’s what the researcher wants to prevent.
2. No. The researcher wants to act on the conclusion.
3. No. The researcher doesn’t explain why the research won’t be done in humans.
4. CORRECT. Yes. The researcher is using the known harm in rats to argue that dioxin could potentially harm humans as well.
5. No. The researcher does not give evidence why research has not been done in humans.

Recap: The question begins with “Toxicologist: Recent research has shown that dioxin causes cancer”. It is a Role in Argument question. Learn how to master LSAT Role questions on the LSAT Logical Reasoning question types page.

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