In Lang's experiment studying the effects of alcohol and the effects of expectations on aggression there were three groups: Group 1: Expected alcohol, received only tonic.
Group 2: Expected alcohol, received alcohol mixed with tonic.
Group 3: Expected tonic, received alcohol mixed with tonic.
Which of the following is true?
A)Only Groups 2 and 3 were experimental groups.
B)Only Group 1 was an experimental group.
C)Group 1 was a control group.
D)All three groups were experimental groups.

Question

Quizplus · Accepted Answer

The experimental group is exposed to the manipulation of the independent variable or variables. In this case, all three groups had their actual versus expected consumption of alcohol manipulated. There is usually, but not always, a control group in an experiment and there can be more than one experimental group.

In Lang's Experiment Studying the Effects of Alcohol and the Effects