Types of Social Groups to Know for Intro to Sociology

Social groups shape our interactions and identities in everyday life. Understanding the different types, from close-knit primary groups to larger, more formal secondary groups, helps us see how relationships influence our behavior, values, and sense of belonging.

  1. Primary groups

    • Characterized by close, personal relationships and emotional ties.
    • Examples include family and close friends, where members provide support and care.
    • These groups are fundamental for socialization and identity formation.
  2. Secondary groups

    • Larger and more impersonal than primary groups, often formed for specific purposes.
    • Examples include coworkers, classmates, or members of a club.
    • Relationships are typically more goal-oriented and less emotionally involved.
  3. In-groups

    • Groups to which individuals feel they belong and identify with.
    • Members often share common interests, values, or characteristics.
    • In-groups can foster a sense of loyalty and community among members.
  4. Out-groups

    • Groups that individuals do not belong to and may feel antagonistic towards.
    • Members of out-groups are often viewed as different or inferior.
    • This distinction can lead to prejudice and discrimination.
  5. Reference groups

    • Groups that individuals use as a standard for evaluating their own behavior and attitudes.
    • They can be aspirational (groups one wishes to join) or comparative (groups one compares oneself to).
    • Reference groups influence self-esteem and social norms.
  6. Formal groups

    • Structured groups with specific rules, roles, and goals.
    • Examples include organizations, committees, or teams with defined hierarchies.
    • These groups often have official documentation and procedures.
  7. Informal groups

    • Groups that form spontaneously and are characterized by casual relationships.
    • They lack formal structure and rules, often based on personal connections.
    • Examples include friend circles or social gatherings.
  8. Peer groups

    • Composed of individuals of similar age or social status who interact regularly.
    • They play a significant role in socialization, especially during adolescence.
    • Peer groups can influence behaviors, interests, and social norms.
  9. Social networks

    • A web of relationships and connections among individuals or groups.
    • They can be both formal and informal, encompassing various types of social interactions.
    • Social networks facilitate the exchange of information, resources, and support.
  10. Voluntary associations

    • Groups formed by individuals who voluntarily come together for a common purpose or interest.
    • Examples include clubs, charities, and professional organizations.
    • These associations often promote social engagement and community involvement.


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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.