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Teams from the University of Florida, Indiana University, and other universities across the U.S. and Israel recently conducted five eye-opening studies about rudeness, uncovering that even mild instances of this behavior can significantly impair employees' performance. This could have potentially life-threatening consequences in critical fields like health care.

The research is published in the Journal of Applied Psychology.

"Many workplaces treat rudeness as a minor interpersonal issue," said Amir Erez, Ph.D., W.A. McGriff, III Professor at the University of Florida Warrington College of Business. "Our research shows that it's a major threat to productivity and even safety. Organizations should treat it as such."

Erez and his fellow researchers evaluated teams in various settings (including a medical simulation) and found that exposure to rude behavior dramatically reduced team functioning. Surprisingly, the impact of rudeness was disproportionate to its intensity. In one study, relatively mild rude comments from an external source accounted for 44% of the variance in medical teams' performance quality.

The studies also discovered that rudeness functions as a social threat, triggering defensive responses in team members. This causes individuals to become less prosocial and more selfish, hindering the cooperation and coordination essential for effective teamwork. Specifically, teams exposed to rudeness showed reduced information sharing and workload sharing, which are two critical components of team performance. In medical settings, this translates to poorer execution of lifesaving procedures.

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