PT53.S1.Q8 Doctor: In three separate studies

realestatelawyer

Correct: D
Incorrect: E

https://7sage.com/lsat_explanations/lsat-53-section-1-question-08/

Explanation: "D" makes it where we can't say that the effects go away with age. By saying that the 2nd and 3rd studies were flawed, we can take away the conclusion that is based on those results. "E" doesn't specify how many children slept with nightlights and weren't nearsighted. "E" could have 5 children that were nearsighted and slept with nightlights along with 95 children that slept with nightlights and were not nearsighted. Because we don't know if the other children were nearsighted even though they didn't sleep with nightlights, or slept with nightlights and weren't nearsighted, or not nearsighted and didn't sleep with nightlights, we can't form a conclusion on partial results. It just talks about several older children that were nearsighted and slept with nightlights. That's not enough say that nearsightedness caused by nightlights goes away with age.