If you wanted to study the effects of caffeine on sleep, you could vary the consumption levels of it. The administration of caffeine is
A)the treatment.
B)the control.
C)unethical.
D)the dependent variable.

Question

Quizplus · Accepted Answer

The administration of caffeine is the treatment because it is the variable being manipulated to determine its effect on sleep. The control group would not receive caffeine, and the dependent variable would be the amount and quality of sleep. The use of caffeine in research is not unethical unless it poses a significant risk to the subjects.

If You Wanted to Study the Effects of Caffeine on Sleep