Great Throughts Treasury

A database of quotes

Irving L. Janis

Research psychologist at Yale University and Professor Emeritus at University of California, famous for his theory of "groupthink" which described the systematic errors made by groups when taking collective decisions.

"[Groupthink] The dissenter was made to feel at home, providing he lived up to two restrictions: first, that he did not voice his doubts to outsiders and thus play into the hands of the opposition; and second, that he kept his criticisms within the bounds of acceptable deviation, not challenging any of the fundamental assumptions of the group’s prior commitments."

"The more amiably and esprit de corps among the members of a policy-making in-group, the greater is the danger that independent critical thinking will be replaced by groupthink, which is likely to result in irrational and dehumanizing actions directed against out-groups."

"The advantages of having decisions made by groups are often lost because of powerful psychological pressures that arise when the members work closely together, share the same set of values and, above all, face a crisis situation that puts everyone under intense stress."