In a Study of Aggression, Dr

In a study of aggression, Dr. Berkowitz had participants watch either violent or non-violent media after they had been frustrated by a colleague. They were then able to deliver electric shocks to the colleague as feedback for mistakes made on a memory test.
Berkowitz recorded the intensity of shocks delivered. Results indicated that more intense shocks were given when participants watched the violent media. In this study, the
Independent variable is ________ and the dependent variable is _.

A) number of shocks; type of media
B) type of media; number of mistakes on the memory test
C) intensity of shocks; type of media
D) type of media; number of shocks
E) number of shocks; number of mistakes on the memory test