In many cases, people will set aside their own personal credence or adopt the opinions of the rest of the group. Groupthink occurs when the pressures are high to conform within an organization interferes with the group 's’ analysis to reach a decision limiting independent thinking. There are eight symptoms of Groupthink that include the following, illusion of invulnerability, rationalization, brief in inherent morality, out-group stereotypes, self-censorship, illusion of unanimity, direct pressure on dissenters, and self-appointed mindguards .
A historical example of Groupthink is the Space Shuttle Challenger Disaster. Engineers from NASA warned launching the space shuttle in below freezing temperatures could be dangerous for all people involved,