Berkowitz and Le Page (1967) Purposely Angered the Participants

Multiple Choice

Berkowitz and Le Page (1967) purposely angered the participants. Then the participants were left in a room with either a gun lying around or a badminton racket. Later, the participants were given the chance to administer electric shocks (not really) to a fellow college student. What was the independent variable of this research?

A) degree of shocks given to the student
B) participants' level of testosterone
C) getting insulted by a confederate
D) type of object in the room