A researcher is studying the effects of film violence on aggressive behavior in males. She randomly assigns 100 males to Group A, who watch several short, violent films and 100 males to Group B, who watch several short films of toddlers playing quietly. She then observes them for a period of time and rates their behavior for aggressiveness. She then decides to divide the data according to the age of the subjects (males over 30 and males under 30) so that she can compare the treatment effects on younger and older age males. Which group is the experimental group?

Question

Quizplus · Accepted Answer

The experimental group is the group that receives the treatment, which in this case is Group A who watch several short, violent films. Group B is the control group, who do not receive the treatment and are used as a baseline for comparison. The division of data according to age is just a way of analyzing the results, and does not affect which group is the experimental group.

A Researcher Is Studying the Effects of Film Violence on Aggressive