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

What will be an ideal response?

Answer:
Cohesiveness is defined as being the factors that cause group members to remain in the group. There are several such factors, including:
1) members like each other
2) members mostly share common goals
3) the group feels essential; they feel they could not replace the group
4) members perform well together
5) there is a general feeling of "solidarity"
6) members are supportive of in-group members, not so cooperative with outgroup members
7) the perception of external threats or serious competition also increase members' commitment to the group