In sociology, what is a social movement?
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Sociology · Foundations
Social Movements
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Social movements are organized, sustained efforts by groups of people to create or resist social change The change in society created through social movements as well as external factors; any disruptive shift in the status quo. Full entry →. Sociologists name three main types: reform movements, which seek specific changes; revolutionary movements, which want to transform society completely; and resistance movements, which try to prevent or undo change. In the political-process framing The sociological framing that explains joining in terms of grievance, identity, and opportunity, holding that grievances alone are not enough; associated with Charles Tilly and Doug McAdam. Full entry →, people join out of grievance, identity, and opportunity. Movements work by mobilizing, framing The way a movement defines a problem, proposes a solution, and issues a call to action in shared terms (diagnostic, prognostic, and motivational framing). Full entry →, and acting, and they rise, grow, and decline or win. The honest note: results are mixed. Movements are society arguing with itself.
Why this matters
Academically, social movements sit at the center of sociology's oldest question — how societies change. The concepts here — types of movements, the political-process framing, mobilization, framing, and the life cycle — reappear across the discipline and connect to politics, stratification, and social change. Practically, movements shape the world you live in: labor protections, public health rules, and countless everyday arrangements bear the marks of organized campaigns. And it matters forward-looking: whatever cause you care about, the same machinery — grievance, identity, opportunity, mobilization — will be at work. You do not have to join anything to read any campaign with clearer eyes.
The college version
What a social movement is
A social movement An organized, sustained effort by a group of people to create or resist social change; purposeful, organized groups striving toward a common social goal. Full entry → is an organized, sustained effort by a group of people to create or resist social change. The working definition draws on two authoritative formulations. OpenStax's Introduction to Sociology 3e defines social movements as purposeful, organized groups that strive to work toward a common social goal. Encyclopaedia Britannica describes a social movement as a loosely organized but sustained campaign in support of a social goal, typically either the implementation or the prevention of a change in society's structure or values. Two features matter. First, movements are organized and sustained: they last for months or years, not hours, and they need organizational and motivational mechanisms to hold members through inactive periods. Second, they are collective: however bold, a single person's effort is not a movement. A crowd that gathers for an afternoon and disperses is collective behavior, not a movement — a movement is what remains when a short-lived impulse becomes a long-term aim and sustained association replaces situational groupings.
Three types of social movements
Sociologist David Aberle (1966) classified movements by what they want to change and how much change they want. Reform movements seek to change something specific about the social structure. Original example: in the fictional town of Larkspur, the Bike Lane Alliance campaigns for one thing — bike lanes on Main Street — and works through city procedures to get them. Revolutionary movements seek to completely change every aspect of society. Original example: in the fictional country of Veyra, the New Dawn League calls for abolishing the constitution and replacing every institution of government. Resistance movements seek to prevent or undo change to the social structure. Original example: when the Larkspur city council votes to close a downtown street to cars, a coalition of shop owners organizes rallies and petitions to get the vote reversed. Most movements are reform movements; revolutionary movements are rarer; and resistance movements typically appear in response to changes already underway.
Why people join, and how movements work
Why do people join? In the political-process framing — the tradition associated with Charles Tilly and Doug McAdam — joining is explained by three factors. Grievance: people join when they feel a condition is unjust and worth fixing. Identity: people join when they see themselves as part of the group the cause speaks for. Opportunity: people join when the political system looks open to challenge — when change seems possible. A central premise of the framing is that grievances alone are not enough; movements arise when grievance, identity, and opportunity line up. How do movements work once people join? They mobilize, frame, and act. Mobilizing means gathering the resources a movement needs — mainly time and money — and the people to use them (resource mobilization The process of gathering the resources a movement needs — primarily time and money — and the people to use them (McCarthy and Zald 1977). Full entry → theory, McCarthy and Zald 1977). Framing means defining the problem, the solution, and the call to action in shared terms — diagnostic, prognostic, and motivational framing (Snow and Benford 1988). Acting means taking collective action: rallies, petitions, boycotts, strikes, testimony, and the daily work of organizing. Every movement, whatever its type, does all three.
The life cycle, and two honest notes
Sociologists describe a movement life cycle (Blumer 1969 and Tilly 1978). Emergence: people become aware of an issue, and leaders emerge. Growth: people join together and organize to publicize the issue and raise awareness — and if the movement persists, it may become an established organization, sometimes with paid staff. Decline or outcome: people fall away, the movement successfully brings about the change it sought, or the issue stops being taken seriously. That final stage carries the honest note: movements have mixed results. Some win what they sought, some fail, and many land in between — changing laws even when attitudes lag, or winning attention without winning policy. OpenStax's account of the civil rights movement makes the point directly: laws were changed, even if not attitudes, and struggles to keep the gains continued. Finally, the honest framing: a social movement is society arguing with itself — a public, organized argument about what the society should become, conducted through claims and counter-claims, with no guarantee of a fair hearing or a tidy ending.
Eli explains
The same idea, in plain words
Explain it like I’m 10
A social movement is a group of people organizing together to make society change or to stop a change from happening. There are three main types: reform movements want one specific change; revolutionary movements want to replace the whole system; resistance movements want to undo a change that already happened. People join because they feel something is unfair, because they identify with the group, and because they see a chance to act. Movements gather people and resources, tell a shared story about the problem, and take action. They grow, and then they either win, fade, or end in something in between.
Picture it like this
Think of a social movement as a neighborhood meeting that never quite ends. A few neighbors are upset about the busy street, so they start talking, then they knock on doors, then they make signs and show up at city hall. The meeting grows into a campaign: someone keeps the list of names, someone decides how to tell the story, someone organizes the next gathering. The street either gets fixed, the neighbors give up, or something halfway happens — a crosswalk, maybe, instead of a full redesign.
Where the picture stops working
A neighborhood meeting is small, friendly, and everyone can speak. A real movement is large and uneven: it faces power, money, and sometimes repression, its members do not all have equal voice, and the society it argues with is not a neutral referee. The meeting analogy also makes winning look easy — most movements never get a fair vote on their demand.
Worked example
In the fictional city of Ridgefield, rents rise sharply for three years. A dozen tenants start meeting in a library basement — emergence, with the first leaders appearing. They name themselves the Ridgefield Renters' Alliance, frame the issue as fair housing rather than individual bad luck, and recruit through flyers and a petition drive — growth, mobilizing time and money. They act: they testify at council meetings, gather six hundred signatures, and hold a small rally. The council passes a rule requiring sixty days' notice before rent increases — a real but partial win. Some members call it a victory and drift away; others stay to push for more. The movement declines into an outcome: a compromise, not a revolution.
Key takeaway
A social movement is an organized, sustained effort by a group to create or resist social change. It runs on grievance, identity, and opportunity; works by mobilizing, framing, and acting; and ends, when it ends, with mixed results. At its core, a movement is society arguing with itself.
Quick check
3 questions here, of 5 in this lesson’s practice set. Answers stay hidden until you check.
In the fictional town of Larkspur, residents form the Bike Lane Alliance to persuade the city council to add bike lanes to Main Street. Which type of social movement is this?
Choose an answer, then check it.
A city council votes to close a downtown street to cars. A coalition of shop owners organizes rallies and petitions to get the vote reversed. Sociologists would classify this coalition as what kind of movement?
Choose an answer, then check it.
Study tools & related lessonsYou’ll learn to · Common mistakes · Easily confused · Key vocabulary · Related
You’ll learn to
- Define social movements using the working definition: organized, sustained efforts by groups to create or resist social change.
- Distinguish reform, revolutionary, and resistance movements, naming an original example of each.
- Explain why people join movements, naming grievance, identity, and opportunity as the three factors of the political-process framing.
- Describe how movements work by mobilizing resources, framing issues, and taking action.
- Outline the movement life cycle: emergence, growth, and decline or outcome.
- Apply the honest note — that movements have mixed results — to analyze a movement's outcome.
Common mistakes
"A social movement is just a protest or a riot."
Protests are one tactic movements use; the movement is the organized, sustained campaign behind them, which may also use petitions, boycotts, testimony, and everyday organizing. A spontaneous crowd that gathers and disperses is collective behavior, not a movement.
"All movements want radical, total change."
Most movements are reform movements seeking one specific change within the existing structure. Only revolutionary movements aim to transform every aspect of society.
"A movement either wins completely or fails completely."
Results are usually mixed: a movement can change laws while attitudes lag, or win attention without winning policy. The civil rights movement changed laws even where attitudes did not follow.
"Grievances alone produce movements."
In the political-process framing, aggrieved people who see no opening often do not organize. Movement formation needs grievance, identity, and opportunity together.
Easily confused
Reform movement vs. Revolutionary movement
A reform movement seeks to change something specific about the social structure, like a bike-lane campaign; a revolutionary movement seeks to completely change every aspect of society, like a campaign to replace the constitution.
Resistance movement vs. Reform movement
A resistance movement seeks to prevent or undo change — reversing a law already passed; a reform movement seeks to bring about a new, specific change. One defends the status quo it prefers; the other presses for a different one.
Social movement vs. Crowd
A movement is organized and sustained, with mechanisms that hold membership through inactive periods; a crowd is a situational gathering of brief duration, guided largely by impulse. A movement is not merely a perpetuated crowd.
Key vocabulary
- social movement
- An organized, sustained effort by a group of people to create or resist social change; purposeful, organized groups striving toward a common social goal.
- reform movement
- A movement that seeks to change something specific about the social structure, working within the existing system.
- revolutionary movement
- A movement that seeks to completely change every aspect of society.
- resistance movement
- A movement that seeks to prevent or undo change to the social structure.
- political-process framing
- The sociological framing that explains joining in terms of grievance, identity, and opportunity, holding that grievances alone are not enough; associated with Charles Tilly and Doug McAdam.
- resource mobilization
- The process of gathering the resources a movement needs — primarily time and money — and the people to use them (McCarthy and Zald 1977).
- framing
- The way a movement defines a problem, proposes a solution, and issues a call to action in shared terms (diagnostic, prognostic, and motivational framing).
- social change
- The change in society created through social movements as well as external factors; any disruptive shift in the status quo.
Sources & references
- 21.2 Social Movements — Introduction to Sociology 3e — OpenStax, Rice University
- 21.3 Social Change — Introduction to Sociology 3e — OpenStax, Rice University
- Social movement — Encyclopaedia Britannica — Encyclopaedia Britannica
- Political process theory — Wikipedia — Wikipedia (article citing Eisinger 1973, McAdam, Tarrow 1998, Meyer 2004)
EliExplains lessons are original prose written from the open, credible references above. See Copyright & Licensing.
Researched 2026-08-22
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