Greitemeyer and His Colleagues Have Conducted a Number of Studies

Multiple Choice

Greitemeyer and his colleagues have conducted a number of studies to examine the effects of video games on helping. They have some participants play a prosocial video game and others play a neutral video game. The independent variable of this research is the __________.

A) degree of helping
B) type of video game
C) participants
D) temperature of the room where they play the game