A model of thought in which people who are deeply involved in a cohesive group value the maintenance of group solidarity over a realistic appraisal of facts. Individual doubts are set aside, and the group may end up making hasty, irrational decisions.
Example: In the film and play “Twelve Angry Men”, eleven of the twelve jurors hastily decide to condemn the defendant in their case to death without thoroughly questioning the facts.
Grinnell, R. (2009). Groupthink. Psych Central. Retrieved on July 30, 2015, from http://psychcentral.com/encyclopedia/2009/groupthink/