Which process results in a "me versus not me" and "us versus them" orientation?

Question

Quizplus · Accepted Answer

Social categorization is the process of classifying people into groups based on their perceived similarities and differences. This process leads to a "me versus not me" orientation because people begin to identify with their own group and see others as being different. This can also lead to an "us versus them" orientation where people in one group view members of other groups as being outsiders or enemies. Social comparison and evaluation can contribute to social categorization, but they are not the sole processes responsible for creating this type of orientation. Social discrimination is a consequence of social categorization, but it is not a process in and of itself.

Which Process Results in a "Me Versus Not Me" and "Us