True or false: Groups have a common identity but not shared expectations

The answer

The statement is False. In sociology, a social group is not defined by identity alone. A genuine social group requires three things working together: a shared identity (members recognize themselves as belonging), shared expectations (norms, roles, and mutual obligations that guide how members treat one another), and regular interaction (ongoing communication or contact). Strip away the shared expectations and interaction, and what remains is no longer a group in the sociological sense.

So the claim traps you by describing only half of what a group is. Common identity is necessary but not sufficient. Because a group must also have shared expectations, saying groups have identity "but not" shared expectations directly contradicts the definition.

Why this matters: group vs. category vs. aggregate

Sociologists carefully separate three collections of people, and mixing them up is the most common exam error here.

• A social group has identity, shared expectations, and interaction. Example: a study team, a family, a sports club.
• A category is a set of people who share a trait or status but do not interact and share no expectations. Example: all left-handed people, or everyone born in 1999. They have a common label (a kind of identity) but no mutual obligations.
• An aggregate is people who happen to be in the same place at the same time with no lasting identity or shared norms. Example: strangers waiting at a bus stop or riding an elevator.

Notice that a category can have a loose "common identity" (the shared trait) yet still lack shared expectations. That is exactly the situation the false statement describes — and precisely why such a collection is classified as a category, not a group. The statement essentially describes a category while mislabeling it a group.

The bigger picture

The reason shared expectations are load-bearing in the definition is that they create social structure. Expectations turn a random cluster of individuals into a coordinated unit: they establish roles (leader, member), norms (how to behave), and accountability (what happens if you break the norm). Identity tells you who belongs; expectations tell you how belonging works. Without expectations, there is nothing to hold members together beyond a label.

This is also why categories can become groups. If left-handed people organized a support association, began meeting, and developed norms and roles, the category would transform into a group. The added ingredient is precisely the shared expectations and interaction the false statement denies. Understanding this transformation is the depth most flashcard sets skip — they define the terms but never show the criteria side by side or explain why expectations are the decisive feature separating a true group from a mere category.