Information and IdeasVery hardInference from a controlled comparison
Information and Ideas practice question
A school gave half its classes a ten-minute silent reading period after lunch and the other half a ten-minute walk. Afternoon test scores rose in both groups by the same amount, while classes with neither activity showed no change. The most reasonable interpretation is that ____
Which choice most logically completes the text?
- A. a short break of either kind after lunch helps afternoon performance, and the specific activity matters less than the pause.Correct
- B. reading is better than walking.
- C. walking is better than reading.
- D. the breaks had no effect.
Answer: A. a short break of either kind after lunch helps afternoon performance, and the specific activity matters less than the pause.
Both breaks helped equally; no break, no gain.
Why the other answers are wrong
- B. reading is better than walking.
- The gains were equal.
- C. walking is better than reading.
- The gains were equal.
- D. the breaks had no effect.
- Classes with no break showed no change; those with breaks improved.
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