A group is a human cluster that forms a social structure with a collective identity and social functions. Factors like motives and social structure influence group formation and types. Groups vary and can be organic communities or associative societies as described in German sociologist Ferdinand Tonnies' theory reconciling organic and social contract views of groups.

2. What is a Group?

3. What is a Group?

5. Human clusters which do not form social
groups but may transformed into one.
Aggregate

6. Social Category

8. Collectivity

10. Factors that Influence Groups
MOTIVES

14. Social Structure

15. Social Structure

16. Social Function

17. Types of Social Groups
Vary in

21. GEMEINSCHAFT &
GESSELSCHAFT
German sociologist
whose theory
reconciled the organic
and social-contract
conceptions of society.