Norms are acceptable standards shared by group members. Although each group has its own unique set of norms, there are common classes of norms that appear in organizations that focus on effort and performance, dress, and loyalty. Also, because individuals desire acceptance by the groups to which they belong, they are susceptible to conformity pressures. Status is a prestige grading, position, or rank within a group. Status systems are an important factor in understanding group behavior.
Group size can also affect the group's overall behavior.
However, the effect depends on which outcomes are focused upon. Group cohesiveness is the degree to which members are attracted to one another and share the group's goals. Toward understanding work group behavior. The answer to why some groups are more successful than others is quite complex. There are five factors which can impact this relationship.