A researcher is testing the effects of violent media images on tolerance for aggressive behaviour by showing either nonviolent or violent movie scenes to participants and then asking the participants to rate the level of aggression they perceive in children interacting on a playground.Which of the following is the independent variable?
A) the type of video that is shown
B) how aggressive the children are behaving on the playground
C) the participants' rating of aggression
D) tolerance for aggression
Correct Answer:
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