Describe some of the factors involved with a group's cohesiveness.

Cohesiveness is defined as being the factors that cause group members to remain in the group. There are several such factors, including:
   1) status within the group - high-status group members experience greater cohesiveness than do low-status group members,
   2) effort required to gain entry - in general, the more difficult or costly it is to become a member, the more unwilling people are to leave the group,
   3) the perception of external threats or serious competition also increase members' commitment to the group, and
   4) group size - small groups tend to be more cohesive than larger ones.