Group cohesiveness refers to the bonds that link members of a group that have something in common; for example work, interests, or being related. It has four main components: social relations, task relations, perceived unity, and emotions. Members of a strongly cohesive group are more likely to actively participate and to stay with the group. This is seen in well-functioning workplaces where the employees work together well and stay with their jobs.
For example, this is often seen in military units that have a strong leader and unit members that are equally dedicated to the job.