Beginning of Essay
Polarization is a tendency to reason only in terms of extremes or opposites. The most common type of polarization is group polarization. Group polarization in general refers to the notion that judgments made by a group tend to be more extreme than judgments made ....

Middle of Essay
.... explain this principal: the persuasive arguments theory, the social comparison theory, and the social identity theory. The persuasive arguments theory generally states that group polarization results from an exchange of information, ideas, or facts among group members, thus providing each member more support for his or her position in the form of new ideas and arguments. Group members’ opinions will change if they are exposed to a variety of different opinions assuming it fits into the person’s preexisting opinions and how logical the information represents reality. The social comparison theory generally states that people change their opinio ....