While researching a topic, a student has taken the following notes:
<ul> <li>Two studies measured the effect of caffeine on reaction time.</li> <li>Study X tested 30 participants in a laboratory setting.</li> <li>Study Y tested 800 participants remotely via a mobile app.</li> <li>Study X's controlled environment yielded smaller variability.</li> <li>Study Y's larger sample yielded more statistical power.</li> </ul> The student wants to emphasize that each study has complementary strengths. Which choice most effectively uses relevant information from the notes to accomplish this goal?Which choice most effectively makes the student's point?
- A
Both studies measured caffeine's effect on reaction time.
- B
Study X had only 30 participants.
- Ccheck_circle
Study X had smaller variability, while Study Y had more statistical power, giving each study a complementary strength.
- D
Study Y used a mobile app.
Explanation
The goal is complementary strengths. Choice B names each study's distinct advantage and labels them complementary. The others omit the comparison or describe one study.