Procedure

• Bartholow and Anderson made students play either a violent computer game (Mortal Kombat), or a non-violent game (PGA tournament golf) for 10 minutes.
• Bartholow and Anderson then made the students complete the Taylor Competitive Reaction Time Task, a standard laboratory measure of aggression, in which the students delivered blasts of white noise at chosen volumes to punish a (non-existent) opponent.