从那以后，来自世界各地几百项研究已经显示了群体极化现象的现实存在。
Since then hundreds of studies from around the world have shown the phenomenon of group polarization in action.
当群体意见趋同、继而迅速叠加、而又缺乏有效引导时，“群体极化效应”便会产生；
When the group's opinion reaches an agreement quickly, but lack of effective conduct, Group polarization phenomenon will appear.
事实上，当人们聚在一起时，很可能会出现“群体极化”的现象：最初的倾向通过群体讨论会被夸大。
In fact people are likely to display group polarization when together: initial preferences actually become exaggerated by group discussions.
然而，正如上面所提到的，在群体建立之初以及群体成员面临的任务是他们所不了解的情况下，群体极化会在决策当中以一个重要的因素出现。
That said, though, where groups are relatively newly formed and tasks are novel, group polarization can emerge as an important factor in decision-making.
值得指出的是，并非所有的群体都会以这种方式极化，而且，事实上有一些研究也并没有观察到群体在决策当中的极化效应。
It's worth pointing out that not all groups do polarize in this way and, indeed, a few of the studies have not observed the polarizing effect of groups on decision-making.
值得指出的是，并非所有的群体都会以这种方式极化，而且，事实上有一些研究也并没有观察到群体在决策当中的极化效应。
It's worth pointing out that not all groups do polarize in this way and, indeed, a few of the studies have not observed the polarizing effect of groups on decision-making.
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