The weapons effect on wheels: Motorists drive more aggressively when there is a gun in the vehicle

• Published in: Journal of experimental social psychology Vol. 73; pp. 82 - 85
• Main Authors: Bushman, Brad J., Kerwin, Thomas, Whitlock, Tyler, Weisenberger, Janet M.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.11.2017
• Subjects: Aggressive driving; Driving simulator; Road rage; Weapons effect; Weapons effect; Driving simulator; Road rage; Aggressive driving
• ISSN: 0022-1031; 1096-0465
• DOI: 10.1016/j.jesp.2017.06.007

In discussions about guns, one factor rarely considered is the fact that merely seeing a gun can increase aggression. This effect—called the “weapons effect”—was first demonstrated in a 1967 study, and has been replicated many times since then. The present experiment used a driving simulator to provide a novel test of the weapons effect. One of the most dangerous activities people engage in is driving a vehicle, and survey studies indicate that driving might be more dangerous if there is a gun in the vehicle. In this experiment, participants (N=60) were randomly assigned to drive a frustrating driving scenario with a gun or a tennis racket in the vehicle's passenger seat. Participants drove more aggressively when there was a gun in the vehicle than when there was a tennis racket in the vehicle. These findings suggest that the mere presence of a gun can make drivers more aggressive.