Groupthink in Social Psychology
Groupthink refers to a systematic failure of collective decision-making that occurs when cohesive groups prioritize consensus and social harmony over critical evaluation of alternatives. In social psychology, the concept explains how highly intelligent and experienced decision makers can collectively arrive at flawed or even catastrophic conclusions, not because they lack expertise, but because the social structure of deliberation suppresses correction. Its importance lies in showing that decision failure is often not simply an individual cognitive error. It is a systemic pathology produced by the interaction of group cohesion, directive leadership, informational insulation, and pressure toward unanimity. Under these conditions, dissent weakens, alternatives receive inadequate scrutiny, risks are discounted, and false confidence grows. This is why groupthink remains one of the most influential concepts in the psychology of institutions. It reveals how governments, corporations, military systems, and other leadership groups can become trapped in internally reinforced consensus just when the need for critical judgment is greatest, making it essential for understanding policy fiascoes, organizational error, and the fragility of collective reasoning under pressure.









