A Double-Blind Study Means That

Multiple Choice

A double-blind study means that:

A) neither the subjects nor the researchers know who is in the experimental group or the control group.
B) neither the subjects nor the researchers know the "real" reason they are involved in a study.
C) neither the subjects nor the researchers are aware that a study is taking place.
D) the subjects are blind as to whether they are getting the actual treatment under consideration or a simulated treatment.