Amy is interested in the effect of caffeine on memory recall. She is testing two groups. One group receives coffee, and the other drinks water. The group receiving only water to drink is referred to as the ______ group.
A) blind
B) confound
C) control
D) experimental

Question

Quizplus · Accepted Answer

The control group receives a placebo or no treatment and is used as a comparison for the experimental group that receives the treatment. In this case, the control group receives water as a placebo for the coffee treatment given to the experimental group. The blind group refers to a group of participants who are unaware of whether they are receiving the treatment or the placebo, and confound is a variable that is unintentionally affecting the results.

Amy Is Interested in the Effect of Caffeine on Memory