Experimentation is more useful than correlational research for testing the claim that
A) children who view a great deal of television violence are also likely to be unusually aggressive.
B) people who exercise frequently are less likely to suffer from depression than infrequent exercisers.
C) people's friendliness and feelings of happiness are increased by the consumption of alcohol.
D) people who drink higher-than-average amounts of coffee are also likely to drink higher-than-average amounts of tea.

Question

Quizplus · Accepted Answer

Experimentation allows researchers to manipulate variables (in this case, alcohol consumption) and control for other factors, enabling them to establish a cause-and-effect relationship between alcohol consumption and changes in friendliness and happiness.

Experimentation Is More Useful Than Correlational Research for Testing the Claim