Expression of IdeasVery hardConveying that evidence is mixed
Expression of Ideas practice question
While researching a topic, a student has taken the following notes:
- A trial gave one group of students a 20-minute nap after lunch.
- The nap group scored 8% higher on an afternoon memory test.
- The nap group scored slightly lower on an afternoon reaction-time test.
- The researchers suggest that grogginess after waking affected reaction times.
The student wants to convey that the nap's effects were not uniformly positive. Which choice most effectively uses relevant information from the notes to accomplish this goal?
- A. The nap group scored 8% higher on the memory test but slightly lower on reaction time, which the researchers attribute to grogginess after waking.Correct
- B. Naps improve memory.
- C. The nap lasted 20 minutes.
- D. The nap group scored 8% higher on the memory test.
Answer: A. The nap group scored 8% higher on the memory test but slightly lower on reaction time, which the researchers attribute to grogginess after waking.
Gain, loss, and the explanation.
Why the other answers are wrong
- B. Naps improve memory.
- Only the positive.
- C. The nap lasted 20 minutes.
- Method only.
- D. The nap group scored 8% higher on the memory test.
- Only the positive.
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