Who invented the term groupthink?

Solomon Asch is well-known for his studies on conformity and social pressure, particularly his classic experiments demonstrating how individuals often conform to group opinions even against their own beliefs. While influential in social psychology, he did not coin the term groupthink or explore its implications in decision-making.

Robert K. Merton was a prominent sociologist known for his theories on social structures and functions, including concepts such as role models and self-fulfilling prophecies. However, he did not develop the term groupthink or focus specifically on group decision-making processes in his work.

W. E. B. Du Bois was an influential sociologist, civil rights activist, and historian who focused on race and social issues in America. His contributions primarily addressed the African American experience and social justice, not the concept of groupthink, which pertains to group dynamics in decision-making.