One thing that is not a sign of groupthink is freedom to voice dissenting ideas.
This is a situation where people in a group agree on one particular thing and those who don't agree still go along with the majority decision to avoid be ostracized.
In such situations, there is no freedom to talk about dissenting views which is why everyone goes along with the majority.
Find out more on groupthink at https://brainly.com/question/10206116.
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