Multiple Choice
A research psychologist manipulates the caffeine intake (2 mg, 5 mg, 10 mg) in human participants in the laboratory and then examines what effect the different levels of caffeine have on the participants' mood scores. In this study, mood scores are the __________ variable.
A) dependent
B) correlational
C) independent
D) experimental
Correct Answer:
Verified
Correct Answer:
Verified
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