In a study on alcohol and aggressive behavior, subjects are randomly assigned to one of two groups. One group receives real alcohol while the other group receives tonic water
Which tastes identical to real alcohol. Although the researchers know which group got
The real alcohol, none of the subjects know. This study is designed as a ______ placebo-control study.
A) single-blind
B) double-blind
C) longitudinal
D) correlational

Question

Quizplus · Accepted Answer

This study is a single-blind study because the subjects do not know whether they are receiving the real treatment or the placebo, but the researchers do know. In a double-blind study, neither the subjects nor the researchers know who is receiving the real treatment.

In a Study on Alcohol and Aggressive Behavior, Subjects Are