In an experiment, researchers exposed half the children to 2 hours of violence on television every day for a month and made sure the other half saw no violence on television at all. At the end of the month, they measured the aggressiveness in the children. The fact that the researchers ensured that some children watched violence on television and others did not is an example of:

Question

Quizplus · Accepted Answer

The fact that the researchers exposed some children to violence on television and made sure the others did not is an example of manipulation, which means the researchers actively manipulated the independent variable (exposure to violence on television) to observe the effect on the dependent variable (aggressiveness). The other options do not accurately describe the experimental design. Matched pairs or samples would involve matching participants based on certain characteristics before assigning them to different groups, which was not the case here. Correlation refers to a statistical relationship between two variables, which is not the focus of this experiment.

In an Experiment, Researchers Exposed Half the Children to 2