Social Differentiation, Power and Stratification (core theme)

Notes · SociologyUK · A-Levels

This second core theme runs through the whole A-Level: how societies divide people into ranked groups, how power is distributed between them, and how these divisions shape life chances. It supplies the vocabulary of inequality - class, status, power, life chances - and the competing explanations of it that reappear in every substantive topic, from education and crime to health and global development.

4 sections~16 min reading time3 competenciesLevel Foundation 1 · Standard 2 · Advanced 1

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Exam profile

AO1 · Demonstrate knowledge and understanding of differentiation, stratification, power and life chances and of the perspectives that explain inequalityAO2 · Apply these concepts to inequalities documented across the substantive topics of the courseAO3 · Analyse and evaluate competing explanations of inequality and of the distribution of power, reaching a judgement

Operators:outline and explaindefineapplyanalyseevaluateassessdiscuss

basic level

AS-Level expects secure understanding of stratification, class, status and power and the ability to identify inequalities between social groups.

higher level

The full A-Level requires you to evaluate functionalist, Marxist, Weberian and feminist explanations of inequality and to carry the concept of life chances into essays on health, education, crime and stratification.

Depth

Text

Contents · 4 sections

Social Differentiation, Power and Stratification (core theme)

Social differentiation and systems of stratification#

FoundationAQA 7192 core theme 2DfE GCE Sociology subject content

Systems of stratification

Fig. 1Closed systems fix position at birth (ascribed); open systems allow movement through achievement.

Social differentiation is the process by which societies distinguish between people and groups on the basis of characteristics such as class, gender, ethnicity, age, disability and religion. Differentiation becomes stratification when these distinctions are organised into a structured, systematic and enduring hierarchy of unequal groups - layers, or strata, ranked above and below one another in wealth, status and power. The metaphor is geological: just as rock is laid down in layers, so societies are divided into levels that persist across generations. The task of sociology is to describe these layers, explain how they are produced and reproduced, and evaluate whether they are inevitable or unjust.

Sociologists distinguish open from closed systems of stratification. In a closed system, a person's position is ascribed - fixed at birth - and movement between strata is severely restricted; slavery, the Hindu caste system and the feudal estate system are the classic examples. In an open system, position is at least partly achieved through individual effort and movement is possible; modern class societies are held to be relatively open, since people can in principle rise or fall through education and employment. Whether contemporary class society is genuinely open, or only presents itself as such while reproducing advantage, is a central question examined in the stratification and education topics.

Class is the dominant axis of stratification in modern industrial societies, but it is not the only one. Feminists argue that gender is itself a system of stratification - patriarchy - in which men as a group hold structural advantages over women in income, power and status. Sociologists of ethnicity document persistent, structured inequalities between ethnic groups that cannot be reduced to class. Age and disability likewise generate patterned inequalities in life chances. A sophisticated analysis recognises that these dimensions intersect: a person's position is the combined product of class, gender, ethnicity, age and disability, not any one of them alone.

The reality and shape of stratification is contested between the perspectives, and this is where the theme becomes evaluative. Functionalists regard some degree of stratification as universal and necessary; Marxists regard class stratification as the historically specific product of exploitation that could, in principle, be abolished; Weberians offer a more pluralistic map of several overlapping hierarchies; and postmodernists question whether stable class strata still describe a fragmented, individualised society at all. Introducing these positions here, in general terms, equips you to deploy them precisely when a substantive topic asks you to explain a particular inequality.

Worked example

Is modern class society really open?

Explain why sociologists disagree about whether modern class society is an open system.

State the official view
Class society is presented as open: position is achieved through education and effort, and social mobility is possible in principle.
Give the functionalist reading
For functionalists this openness is real and desirable - a meritocracy allocates the most able to the most important positions.
Give the critical reading
Marxists and Bourdieu argue that advantage is quietly reproduced through cultural capital and unequal schooling, so mobility is more limited than the meritocratic story claims.
Note the evidence
Patterns of relative mobility (examined in the stratification topic) show origins still strongly predict destinations, tempering claims of full openness.

Result: Class society is formally open but substantively constrained: the disagreement turns on whether achieved position genuinely displaces inherited advantage, which the evidence on relative mobility suggests it only partly does.

Typical mistakes

Using 'differentiation' and 'stratification' interchangeably - stratification is specifically structured, ranked and enduring inequality, not mere difference.
Reducing all inequality to class and ignoring gender, ethnicity, age and disability as independent dimensions of stratification.

Active revision

Outline and explain two differences between open and closed systems of stratification. (10 marks)

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for sociology (Department for Education)

Power and authority: who rules?#

StandardAQA 7192 core theme 2DfE GCE Sociology subject content

Lukes: the three faces of power

Fig. 2Lukes argues power operates on three levels, from visible decision-making to the invisible shaping of what people want.

Power is the capacity to achieve one's aims even against the wishes or interests of others. Weber drew the influential distinction between coercion - power exercised through force or its threat, which is inherently unstable because it is resented - and authority, which is power regarded as legitimate by those subject to it, and therefore accepted willingly. Weber identified three ideal types of legitimate authority: traditional authority, resting on established custom ('it has always been so'); charismatic authority, resting on the exceptional personal qualities of a leader; and rational-legal authority, resting on impersonal rules and offices, which is the characteristic form in modern bureaucratic societies.

The distribution of power is fiercely contested between the perspectives. Pluralists argue that power in a democracy is widely dispersed among many competing groups - parties, unions, businesses, pressure groups - none of which dominates, so that outcomes reflect a rough balance of interests. Elite theorists reply that power is in fact concentrated in the hands of small, cohesive elites who occupy the commanding positions in the state, economy and military. Marxists go further, arguing that real power lies with the capitalist class that owns the means of production, and that the state ultimately serves its interests however democratic it appears. Feminists add that power is also gendered, structured by patriarchy across public and private life.

Lukes deepens the analysis by arguing that power has three faces or dimensions. The first is the power to win in open decision-making - to prevail in a visible conflict. The second is the power to control the agenda - to keep certain issues from ever being discussed, so that some conflicts never surface. The third, and most subtle, is the power to shape people's very wants and beliefs, so that they come to accept, and even desire, arrangements that work against their interests. This third face connects directly to the Marxist concept of ideology and false consciousness and to the feminist analysis of patriarchal socialisation, and it warns against measuring power only by visible conflict.

These competing models are not merely abstract; they generate testable disagreements that recur throughout the course. When the media topic asks whether owners control content, or the crime topic asks whose behaviour gets criminalised, or the education topic asks whose knowledge counts as valuable, the underlying question is always about the distribution of power. Evaluating pluralist against elite and Marxist accounts - and recognising Lukes's point that the most effective power may be invisible - is therefore a transferable analytical skill rather than a self-contained subtopic.

Worked example

Model essay plan: is power widely dispersed?

Plan a 20-mark answer evaluating the pluralist claim that power is widely dispersed.

Set up the debate
Pluralists say power is dispersed among competing groups; elite theorists and Marxists say it is concentrated. Signal a judgement.
The pluralist case
Multiple parties, unions and pressure groups compete; no group wins every time; democratic mechanisms allow influence. Power reflects a rough balance.
The elite/Marxist critique
Elite theory: key positions are held by cohesive elites. Marxism: real power lies with the capitalist class; the state serves capital regardless of elections.
Bring in Lukes
Pluralism measures only the first face - visible decisions. Agenda-setting and the shaping of preferences mean concentrated power can operate unseen, invalidating the pluralist test.
Judgement
Conclude that formal dispersal coexists with substantive concentration: pluralism captures visible politics but misses the hidden faces of power that structural theories expose.

Result: A top-band plan grants the pluralist account of visible competition, then uses elite theory, Marxism and Lukes's hidden faces to show that dispersal at one level masks concentration at another - a reasoned judgement, not a list of views.

Typical mistakes

Treating power and authority as synonyms - authority is specifically legitimate power that is accepted as rightful.
Assuming power is only exercised in open conflict, and so missing agenda-setting and the shaping of preferences (Lukes's second and third faces).

Active revision

Applying material from the Item and your knowledge, evaluate the pluralist view that power in modern society is widely dispersed. (20 marks)

Active recall

Recall the key points — then reveal.

Sources: AQA AS and A-level Sociology (7192) specification (AQA)

The dimensions of inequality: class, gender, ethnicity, age#

StandardAQA 7192 core theme 2DfE GCE Sociology subject content

Intersecting dimensions of inequality

Fig. 3Inequality is multi-dimensional: class, gender, ethnicity, age and disability intersect to shape overall life chances.

Although class remains the dominant axis of stratification in sociological analysis, the discipline recognises several distinct dimensions of inequality, each generating its own patterned advantages and disadvantages. Class is defined either by relationship to the means of production (Marx) or by market position and life chances (Weber); it structures income, wealth, health and educational success. But gender, ethnicity, age and disability each produce inequalities that cannot be wholly reduced to class, and a mature analysis treats them as related but analytically separate dimensions that combine in a person's overall position.

Gender inequality is the object of feminist analysis, which conceptualises it as patriarchy - a structured system in which men as a group hold advantages in income, occupational power, political representation and control within the household. Feminists disagree about its roots (liberal, Marxist and radical accounts differ), but agree that gender is a stratifying force rather than a natural difference. Ethnic inequality is documented in the persistent disadvantages faced by some minority ethnic groups in employment, housing, health and the criminal justice system; sociologists debate how far these reflect class position, discrimination and racism, or cultural factors, a debate developed in the crime and education topics.

Age and disability are increasingly analysed as dimensions of stratification in their own right. Age structures life chances through the distinctive positions of children, the young, the middle-aged and the elderly - each associated with different levels of income, status and power, and with age-based discrimination. Disability, understood through the social model rather than the medical model, is treated as a form of inequality produced by a society organised around the able-bodied, rather than as a simple consequence of individual impairment. Recognising these dimensions guards against the error of treating inequality as a single ladder.

The concept of intersectionality, developed within feminism and the sociology of ethnicity, captures the crucial point that these dimensions do not simply add together but interact. The experience of a working-class woman of a minority ethnic group is not the sum of three separate disadvantages but a distinctive position shaped by their intersection. This insight, prominent in difference feminism, challenges any perspective that privileges a single dimension - whether Marxism's focus on class or radical feminism's focus on gender - and encourages the multi-dimensional analysis that the strongest evaluative essays deploy. It also connects the core theme directly to the substantive topics, where inequalities are always the compound product of several dimensions at once.

Worked example

Applying intersectionality

Explain why sociologists argue that inequality cannot be understood through class alone.

State the limitation
A class-only analysis cannot explain why, within the same class, women, minority ethnic groups, the elderly and disabled people face additional, patterned disadvantage.
Introduce the dimensions
Gender (patriarchy), ethnicity, age and disability each generate inequalities that persist across class positions.
Apply intersectionality
These dimensions interact: the position of a working-class minority-ethnic woman is distinctive, not the arithmetic sum of separate disadvantages.
Draw the conclusion
Therefore adequate analysis is multi-dimensional; single-cause theories (class-only Marxism, gender-only radical feminism) are each incomplete.

Result: Because gender, ethnicity, age and disability produce disadvantage independent of, and intersecting with, class, sociologists conclude that inequality must be analysed as multi-dimensional rather than reduced to a single hierarchy.

Typical mistakes

Collapsing gender, ethnicity, age and disability into class, so that independent dimensions of inequality disappear.
Treating the dimensions as simply additive rather than intersecting, missing the distinctive position their combination produces.

Active revision

Outline and explain two dimensions of social inequality other than social class. (10 marks)

Active recall

Recall the key points — then reveal.

Sources: AQA AS and A-level Sociology (7192) specification (AQA)

Life chances and perspectives on inequality#

AdvancedAQA 7192 core theme 2DfE GCE Sociology subject content

Functionalist versus Marxist explanations of inequality

Fig. 4Functionalism sees stratification as a necessary incentive; Marxism sees it as exploitation - but both agree inequality is structured and enduring.

Life chances, a concept from Weber, refers to the probability that a person will gain access to valued resources and experiences - good health, secure housing, educational success, a rewarding job, a long life - according to their position in the stratification system. The concept is powerful because it converts an abstract structure of inequality into concrete, measurable consequences: it predicts that those at the top of the hierarchy will, on average, live longer, healthier, safer and more comfortable lives than those at the bottom, not because of individual merit but because of the resources and constraints attached to their social position. Life chances therefore provide the thread linking stratification to the substantive topics of health, education and crime.

Functionalists, following Davis and Moore, explain stratification and its unequal rewards as necessary and beneficial. Because some positions are more functionally important and require scarce talent and long training, society must attach greater rewards to them to motivate the most able to fill them. Inequality, on this view, is the mechanism of effective role allocation, and life-chance differences are the incentive that makes a meritocracy work. Critics object that the theory assumes a consensus over which roles matter, cannot explain why inherited wealth or discrimination distort the link between reward and importance, and ignores the way inequality of outcome undermines genuine equality of opportunity.

Marxists offer a diametrically opposed account. For them, stratification is not a functional necessity but the expression of class exploitation: the bourgeoisie's wealth derives from the surplus value extracted from the labour of the proletariat, and unequal life chances are the human cost of that exploitation. Inequality is reproduced through ideology, which secures the consent of the exploited by presenting the system as fair or natural - false consciousness. Weberians accept the reality of class-based inequality but reject the single-cause model, mapping several overlapping bases of advantage - class (market position), status (social honour) and party (organised power) - that do not always coincide. Feminists insist that patriarchy is a further, partly independent structure shaping women's life chances across work, the family and the state.

Evaluating these perspectives is the culmination of the theme. The functionalist account captures the incentive function of reward but naturalises inequality and struggles with inherited privilege; the Marxist account exposes exploitation and ideology but is criticised for economic determinism and for underplaying gender and ethnicity; the Weberian account is more realistic about multiple, cross-cutting hierarchies but is accused of description without a driving explanation; and feminism corrects the gender-blindness of the others but is itself internally divided. A strong essay does not simply parade these positions but weighs them against the evidence on life chances, reaching a judgement about which best explains the patterned inequalities the rest of the course documents.

Illustrative life-chance gradient by social class

Fig. 5Typical illustrative pattern (not official statistics): life chances tend to decline down the class hierarchy - the empirical footprint of stratification.

Worked example

Model essay plan: is stratification necessary?

Plan a 20-mark answer evaluating the functionalist view that stratification is necessary and beneficial.

Set up the debate
Functionalists (Davis & Moore) say stratification is a functional necessity; Marxists and Weberians disagree. Signal a judgement.
The functionalist case
Unequal rewards motivate the ablest to train for the most important roles; stratification ensures effective role allocation in a meritocracy.
Internal critique
Who decides which roles are 'most important'? Inherited wealth and discrimination break the link between reward and importance; high reward may reflect power, not function.
The conflict alternative
Marxism: stratification is exploitation reproduced by ideology, not consensus. Weber: multiple hierarchies (class, status, party) that functionalism collapses into one.
Judgement
Conclude that the incentive argument has some force but cannot account for inherited privilege or the scale of life-chance inequality, so conflict explanations are more convincing overall.

Result: A top-band plan credits the functionalist incentive logic, dismantles it with the problem of inherited advantage, sets Marxist and Weberian alternatives against it, and judges the conflict account better supported by the evidence on life chances.

Typical mistakes

Describing the perspectives one after another without comparing or evaluating them - juxtaposition is not analysis.
Presenting Davis and Moore as obviously right or obviously wrong rather than weighing the incentive argument against the problem of inherited privilege.

Active revision

Applying material from the Item and your knowledge, evaluate the functionalist view that social stratification is necessary and beneficial for society. (20 marks)

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for sociology (Department for Education)

References & sources

Sources

Department for Education

GCE AS and A level subject content for sociology

AQA

AQA AS and A-level Sociology (7192) specification

Social Differentiation, Power and Stratification (core theme)

4 sections~16 min reading time3 competenciesLevel Foundation 1 · Standard 2 · Advanced 1

Key points

Is modern class society really open?

Key points

Model essay plan: is power widely dispersed?

Key points

Applying intersectionality

Key points

Model essay plan: is stratification necessary?

Sources

Social Differentiation, Power and Stratification (core theme)

Key points

Is modern class society really open?

Key points

Model essay plan: is power widely dispersed?

Key points

Applying intersectionality

Key points

Model essay plan: is stratification necessary?

Sources