Dr. Green is studying the effects of alcohol on manual dexterity. Group A is given 250 milliliters of an alcoholic beverage to drink, Group B is given 500 milliliters of the same beverage to drink, Group C is given 750 of this beverage to drink, and Group D is given a placebo to drink. Which group is the control group?
A) Group A
B) Group B
C) Group C
D) Group D
E) There is no control group in this experiment.

Question

Quizplus · Accepted Answer

Group D is the control group because they are given a placebo, which means they are not exposed to the experimental variable (alcohol) and serve as a baseline to compare the effects of alcohol on the other groups.

Dr Green Is Studying the Effects of Alcohol on Manual