How did the researchers test the students?
Researchers asked two groups of students to learn a list of forty word pairs in the evening. One group slept for eight hours and was tested the next morning; the other group stayed awake through the night and was tested at the same time. The group that slept recalled noticeably more pairs. The researchers do not claim that sleep is the only factor that matters. They note that the volunteers were young adults, and the results may not apply to children or older people. Still, the finding supports an idea many teachers have suggested for years: a night of sleep after studying may be more useful than extra hours of late study.
Answer and explanation
Correct answer: D. They gave each group the same list and tested both the next morning.
Answer: same list, tested next morning. Why not the others: The passage gives no different lists, afternoon tests or night tests.
- Step 1: Both groups learned the same list in the evening.
- Step 2: Both were tested the next morning at the same time.
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