In principle, a cohesive group—one whose members generally agree with one another and support one another's judgments—can do a much better job at decision making than it could if it were noncohesive.
Topic
The effects of group cohesiveness on decision-making, specifically the risks and dynamics of "groupthink."
Framework
Problem / Solution
Main Point
While group cohesiveness can foster open and honest discussion, it can also lead to a problematic phenomenon called "groupthink," where the desire for consensus overrides critical thinking and sound judgment. The Most Valuable Sentence: Appears at the end of Paragraph 2 —
P1: Benefits of Group Cohesion
Groups that are cohesive tend to work together better because members feel comfortable sharing their true opinions. This openness leads to more honest, less censored discussions, because everyone trusts they'll still be valued even if they disagree with the group.
P2: Pitfalls of Too Much Cohesion—Groupthink
However, too much groupiness has a big downside: people might stop critically evaluating ideas in their pursuit of agreement. Instead of questioning group choices, members just go with the flow, leading to "groupthink"—a situation where critical thinking gets tossed aside for harmony.
P3: Symptoms and Conditions for Groupthink
Looking at real-world disasters in diplomacy and military decisions, researchers have spotted patterns of groupthink, like an overinflated sense of group power, ignoring warnings, and failing to consider alternatives. Cohesiveness is necessary but not enough by itself to cause groupthink—other factors are at play, and it's important to figure out what causes a cohesive group to become either effective or dysfunctional.