The Effects of Rudeness on NICU Medical Teams Studied by a New Tool for the Assessment of Decision-Making Group Dynamics.

Background: Group decision-making can be placed on a continuum of group dynamics, between Groupthink and Polythink.

Objective: To present a new assessment tool for the characterization of medical teams' decision-making group dynamics, and test it to study the effects of exposure to rudeness on various types of group dynamics.

Methods: Three judges who watched videotapes of critical care simulations evaluated 24 neonatal intensive care unit teams' decision-making processes. Teams were rated using the new assessment tool, especially designed for this quantitative study, based on items adapted from symptoms of Polythink and Groupthink.

Results: Measures of reliability, inter-rater agreement and internal consistency, were reasonably good. Confirmatory factor analysis refined the tool and verified that the symptoms in each category (Polythink or Groupthink) of the refined 14 items' assessment tool were indeed measures of the construct. The average General Score was in the range of the balanced dynamic on the continuum, and without tendency towards one of the extremities (Groupthink or Polythink). No significant effect of exposure to rudeness on group dynamics was found.

Conclusions: This is a first attempt at using quantitative methods to evaluate decision-making group dynamics in medicine, by adapting symptoms of Groupthink and Polythink as items in a structured assessment tool. It suggests a new approach to understanding decision-making processes of medical teams. The assessment tool seems to be a promising, feasible and reasonably reliable research tool to be further studied in medicine and other disciplines engaged in decision-making.