The research has implications beyond the courthouse deliberation room, according to ASU psychologist Jessica Salerno, co-author of the study “One angry woman: Anger expression increases influence for men, but decreases influence for women during group deliberation.”
It was published in the journal Law and Human Behavior. Liana Peter-Hagene of the University of Illinois-Chicago is the other co-author.
The study featured 210 jury-eligible undergraduates who participated in a computer simulation in which they believed they were deliberating with five other participants.
Each participant viewed a 17-minute presentation that was based on evidence from a real case in which a man was tried for murdering his wife.
Participants read summaries of the opening and closing statements and eyewitness testimonies. They also viewed photographs of the crime scene and the alleged murder weapon.