Solution:Types of groups. People form into groups under various circumstances. The group tendency depends upon the circumstances, size, objectives of the institution.
Formal group. Group is defined by the organisation's structure with designated work assignments establishing tasks. The behaviour of the members are directed by the organi-sations.
Informal group. It is an alliance among people that are neither formally structured nor organisationally determined. These groups are natural formations in the work environment in response to the need for social contract.
Common group. It is determined by the organisation chart. It is composed of the sub-ordinates who report directly to a given manager.
Task group. It is organisationally determined. It represents those working together to complete a job or task. Group's boundary is not limited to its immediate superior. All command groups are task groups and not vice versa.
Interest group. People may affiliate to attain a specific objective with which they are concerned. People form into an united body to further their common interest.
Friendship group. Groups often develop because the member have one or more common characteristics. Social alliances can be based on similar age, habit, political views, etc.
Apathetic group. Low paid workers form into group because of discontentment.
Erratic group. The behaviour of erratic group is unpredictable. Semi-skilled workers who require interaction work together. Their relations with management are erratic.
Strategic group. In the plant, skilled workers who perform key jobs form into groups. They are always interdependent.
Conservative group. People at the top of the organisation are highly specialised and form into group. They display self-confidence. They can influence the functioning of the organisation.
Primary and seoondary groups. In a primary group members have opportunity of discussing face to face. The group is also small in size. The membership is based on intimate relationship.
The secondary group is more formal and members may not have any interest in the problems. The intimacy, interaction, association and cooperation may not be found in secondary groups.
Reference group. It is a group to which the member really belongs. An individual may be a member of several groups but he may not actively panicipate in all such groups.
Member would like to participate in a group where norms are attractive to the individual. Such group norms become more influential in determining behaviour.
Membership group. It is a group with which member identifies himself. His association ceases the moment individual stops paying subscription towards the membership.
In-group. The in-group represents a cluster of persons having values in a society or dominant place in social functioning.