• Secondary groups - these groups are usually larger than primary groups,consequently, the level of interaction and the intimacy that exist between the members is relatively low. In essence, all the members are rarely in direct contact with each other at any given time. This therefore suggests that the relationship shared among the members is impersonal and functional. Political parties and national police force in one's country mirrors the characteristics of Secondary groups.
• Formal groups - these groups are organized with a clearlydefined hierarchical structure and clear lines of authority. One must satisfy certain criteria before gaining acceptance or entry into the group. The members are expected to follow specific code of conduct and sanctions are taken if rules are broken. Examples: Cadets, scouts and Sports club
• Informal groups - do not have written rules regulating membership. There is an air of‘spontaneity' in these types of groups where as goals and roles change with the ever changing activities of the group. A group of friends who hang out at school is an example of this type of group.
• Peer groups - are formed by people who are of the same age who share common interest, values and social status. Within this group there exist a strong sense of loyalty to the demands of the group which may conflict with what is expected at home and school.
• Interest groups - are formed by people who have a particular interest to protect.These groupings provide opportunities for the exchange of news on all sorts of topic and also aim to influence government to maintain or increase any advantages or benefits which they enjoy. Religious groups are example of interest groups
• Involuntary Membership -