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. Neither the subjects nor the researchers know
Which group got the real alcohol until after the study is completed. 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 designed as a double-blind placebo-control study because both the subjects and the researchers are blinded to the assignment of the groups, and the placebo (tonic water) is used in the control group. The use of a real alcoholic beverage in the experimental group is intended to help assess the relationship between alcohol consumption and aggressive behavior. The study is not longitudinal since it is not following the same group of subjects over time, and it is not correlational since it involves manipulating an independent variable (alcohol consumption) to determine its effect on the dependent variable (aggressive behavior).

In a Study on Alcohol and Aggressive Behavior, Subjects Are