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groupshift
Groupshift is a phenomenon in which the initial positions of individual members of a group are exaggerated toward a more extreme position. When people are in groups, they make decisions about risk differently from when they are alone. In the group, they are likely to make riskier decisions, as the shared risk makes the individual risk less.
==Overview==
An example of groupshift is when the fans of a sports team celebrate the win of their team and their celebration turns to destruction of property. What appears to happen in groups is that the discussion leads to a significant shift in the positions of members toward a more extreme position in the direction in which they were already leaning before the discussion; so conservative types become more cautious and the more aggressive types take on more risk. For example, one study examined what would occur if prejudiced students were asked to discuss racial issues and what would happen if non-prejudiced students discussed the same racial issues. The prejudiced students became more prejudiced whilst the non-prejudiced students became more non-prejudiced (Myers & Bishop, 1970). The group discussion tends to exaggerate the initial position of the group.
This idea seems to relate quite well with the basic principles of groupthink, which is a mode of thinking that people engage in when they are deeply involved in a cohesive group, when the members' strivings for unanimity override their motivation to realistically appraise alternative courses of action. Groupshift can be seen to be evident within groupthink as a sub-set of typical thinking patterns that occur in group situations and can be observed in society in situations such as student bodies, government, sporting teams and juries...
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「groupshift」の詳細全文を読む
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