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After the publication of Janis' book Victims of Groupthink in 1972, [11] and a revised edition with the title Groupthink: Psychological Studies of Policy Decisions and Fiascoes in 1982, [12] the concept of groupthink was used [by whom?] to explain many other faulty decisions in history. These events included Nazi Germany's decision to invade ...
Irving Lester Janis (May 26, 1918 – November 15, 1990) was an American research psychologist at Yale University and a professor emeritus at the University of California, Berkeley most famous for his theory of "groupthink", which described the systematic errors made by groups when making collective decisions.
A medical analysis of the event about one year later found that outbreaks began among the 14-year-olds, but that the heaviest incidence moved to the youngest age groups. [34] There was no evidence of pollution of food or air. [34] The younger girls proved more susceptible, but disturbance was more severe and lasted longer in the older girls. [34]
The idea of a "group mind" or "mob behavior" was first put forward by 19th-century social psychologists Gabriel Tarde and Gustave Le Bon.Herd behavior in human societies has also been studied by Sigmund Freud and Wilfred Trotter, whose book Instincts of the Herd in Peace and War is a classic in the field of social psychology.
The recalling of more personal events from adolescence and early adulthood than personal events from other lifetime periods. [175] Repetition blindness: Unexpected difficulty in remembering more than one instance of a visual sequence Rosy retrospection: The remembering of the past as having been better than it really was. Saying is believing effect
Many horrific catastrophes have rocked the world and shaped history forever. However, some of these events were apparently worse than initially perceived. A Reddit question recently went viral ...
Sally Fuller and Ramon Aldag argue that group decision-making models have been operating under too narrow of a focus due to the overemphasis of the groupthink phenomenon. [2] [3] [4] In addition, according to them, group decision-making has often been framed in relative isolation, ignoring context and real-world circumstances, which is a likely consequence of testing group decision-making in ...
In groupthink theory, a mindguard is a member of a group who serves as an informational filter, providing limited information to the group and, consciously or subconsciously, utilizing a variety of strategies to control dissent and to direct the decision-making process toward a specific, limited range of possibilities. [1]