Types of Groups:
Cohesiveness: The strength of member bonds that promote group unity, leading to greater success through enhanced cooperation.
Entitativity: The perceived quality of a group by outsiders; groups with similar members and shared goals possess high entitativity.
Social Norms: Unwritten rules guiding behaviors within the group that influence attitudes and actions. Ex: Facebook norms.
Roles: Defined responsibilities that direct or restrict member behavior for enhanced productivity; ambiguity can reduce performance.