Multiple Choice
A researcher is studying the effects of caffeine on sleeplessness (measured as the amount of time spent awake in a 24 hour period) . A group of participants are randomly assigned to one of three groups (no caffeine, low caffeine, high caffeine) . What type of general design classification is this?
A) Between-groups design
B) Within-subjects design
C) Mixed design
D) Associational design
Correct Answer:

Verified
Correct Answer:
Verified
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