Multiple Choice
Dr Murphy is investigating the effect of caffeine on students' performance on a memory task. She randomly allocates 200 university students into three groups. Thirty minutes before the task, she asks Group A to drink 30ml of black coffee, Group B to drink 50ml and Group C to drink 100ml. Group B is:
A) the control group
B) the experimental group
C) a condition that varies quantitatively from the others
D) a condition that varies qualitatively from the others
Correct Answer:
Verified
Correct Answer:
Verified
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