What methods do sociologists use to study society, what shapes their choice, and how do validity, reliability, representativeness and ethics judge the quality of research?
Methods of sociological enquiry (Component 2): primary and secondary methods (questionnaires, interviews, observation, experiments, official statistics, documents); quantitative and qualitative data; positivist and interpretivist approaches; sampling; and the key concepts for evaluating research (validity, reliability, representativeness and ethics).
The core content of WJEC A-Level Sociology Component 2: primary and secondary research methods (questionnaires, interviews, observation, experiments, official statistics, documents), quantitative versus qualitative data, positivist and interpretivist approaches, sampling, and the concepts that evaluate research, validity, reliability, representativeness and ethics.
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What this dot point is asking
Component 2 (Methods of Sociological Enquiry) tests how sociologists study society. You need to know the main primary and secondary methods, the difference between quantitative and qualitative data, the positivist and interpretivist approaches that shape method choice, the main sampling techniques, and the four concepts used to evaluate research: validity, reliability, representativeness and ethics. This is the methodological backbone of the whole A-level.
The answer
Primary and secondary methods
Quantitative and qualitative data
- Quantitative data is numerical: it allows patterns, trends and correlations to be measured and compared. Questionnaires, structured interviews and official statistics tend to produce it.
- Qualitative data is descriptive: it captures meaning, feelings and detail. Unstructured interviews, participant observation and documents tend to produce it.
Positivist and interpretivist approaches
Sampling
Researchers usually study a sample rather than the whole target population. Common techniques include:
- Random sampling - everyone has an equal chance of selection.
- Stratified sampling - the sample mirrors the proportions of groups in the population.
- Quota sampling - the researcher fills set quotas for each group.
- Snowball sampling - existing participants recruit others, useful for hard-to-reach groups.
A good sampling frame and technique support representativeness, allowing generalisation to the wider population.
Evaluating research: validity, reliability, representativeness, ethics
Examples in context
The reliability-validity trade-off. A structured questionnaire is highly reliable: its standardised questions can be repeated exactly and produce consistent, quantitative data, which is why positivists favour it. But it may lack validity: respondents can misunderstand questions or give socially desirable answers, so the data may not reflect what people really think. An unstructured interview is the mirror image: rich and valid, capturing genuine meaning, but hard to repeat and so less reliable. The examiner rewards an answer that recognises this trade-off and judges method choice by the aim of the research, the topic and the group studied, rather than declaring one method best in the abstract.
Try this
Q1. Distinguish between quantitative and qualitative data. [4 marks]
- Cue. Quantitative data is numerical and good for patterns; qualitative data is descriptive and good for meaning and detail.
Q2. Explain why positivists prefer quantitative methods. [6 marks]
- What the marker wants. Positivists seek objective patterns, correlations and laws and value reliability, so they favour standardised, repeatable quantitative methods.
Q3. Evaluate the strengths and limitations of participant observation. [16 marks]
- What the marker wants. High validity and depth (interpretivist appeal) weighed against low reliability, poor representativeness and ethical issues such as covert research, with a judgement.
Exam-style practice questions
Practice questions written in the style of WJEC exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
WJEC specimen12 marksExplain the difference between primary and secondary data, with an example of each.Show worked answer →
A short structured question rewarding precise definitions and apt examples rather than a long discussion.
Define primary data as information the researcher collects first-hand for their own purpose, giving an example such as a questionnaire, interview or observation. Define secondary data as information that already exists, collected by someone else, giving an example such as official statistics, documents or previous research.
A strong answer adds a sentence on why the distinction matters: primary data can be tailored to the research question but is costly and time-consuming, while secondary data is cheaper and quicker but may not fit the question and was gathered for other reasons.
WJEC specimen16 marksEvaluate the strengths and limitations of using questionnaires in sociological research.Show worked answer →
An evaluation question, so weigh strengths against limitations using the key concepts and reach a judgement.
Strengths: questionnaires are quick, cheap and can reach large, representative samples, producing quantitative data that is reliable (easily replicated and standardised) and favoured by positivists for finding patterns and correlations.
Limitations: they often lack validity because respondents may misunderstand or give socially desirable answers, the fixed questions impose the researcher's framework, response rates can be low, and they capture little depth, which interpretivists criticise.
Conclude by judging questionnaires as strong on reliability and representativeness but weaker on validity and depth, so their suitability depends on the research aim, the topic and the group being studied.
Related dot points
- Designing and evaluating research (Component 2): applying methodological knowledge to a research scenario; designing a study and justifying the choice of method and sample; the relationship between theory, methods and topic; and evaluating the strengths, limitations and ethics of a piece of research.
The applied skill at the heart of WJEC A-Level Sociology Component 2: reading a research scenario, designing a sociological study and justifying the choice of method and sample, understanding how theory, method and topic connect, and evaluating the strengths, limitations and ethics of a piece of research.
- The main sociological perspectives applied across all components: functionalism (consensus, value consensus), Marxism (class conflict, ideology), feminism (patriarchy, its strands), interactionism (meanings, labelling), postmodernism (diversity, choice) and the New Right; structure versus action and consensus versus conflict.
The core sociological perspectives required across every component of WJEC A-Level Sociology: functionalism and value consensus, Marxism and class conflict, feminism and its strands (liberal, Marxist, radical), interactionism and labelling, postmodernism and the New Right, plus the underlying structure versus action and consensus versus conflict debates.
- Crime and deviance (Component 3, Section B option): defining crime and deviance; theories of crime (functionalist and strain, subcultural, Marxist, interactionist and labelling, realist, feminist); the social distribution of crime by class, gender, ethnicity and age; the problems of measuring crime; and crime control, punishment and social order.
The WJEC A-Level Sociology Component 3 option on crime and deviance: defining crime and deviance, functionalist, strain, subcultural, Marxist, interactionist, realist and feminist theories of crime, the patterning of crime by social class, gender, ethnicity and age, the problems of measuring crime, and crime control, punishment and the maintenance of social order.
- Education (Component 1, Section C option): the role and functions of education; differential educational achievement by social class, gender and ethnicity (home and school factors); processes within schools (labelling, the hidden curriculum, subcultures); educational policy; and perspectives on education (functionalist, Marxist, feminist, interactionist, New Right).
The WJEC A-Level Sociology Component 1 option on education: the role and functions of education, differential achievement by social class, gender and ethnicity through home and school factors, in-school processes such as labelling, the hidden curriculum and pupil subcultures, education policy, and functionalist, Marxist, feminist, interactionist and New Right perspectives.
- Social differentiation and stratification (Component 3, Section A): systems of stratification; dimensions of inequality (social class, gender, ethnicity and age); theories of stratification (functionalist, Marxist, Weberian and feminist); social mobility and life chances; and the changing class structure.
The compulsory Section A content of WJEC A-Level Sociology Component 3: systems of stratification, inequality by social class, gender, ethnicity and age, functionalist, Marxist, Weberian and feminist theories of stratification, social mobility and life chances, and debates about the changing class structure.
- Families and households (Component 1, Section B option): family forms and family diversity in England and Wales; demographic change (marriage, divorce, cohabitation, fertility, life expectancy, singlehood); relationships, roles and power within families; childhood; and perspectives on the family (functionalist, Marxist, feminist, postmodernist, New Right).
The WJEC A-Level Sociology Component 1 option on families and households: family forms and diversity in England and Wales, demographic change in marriage, divorce, cohabitation, fertility and life expectancy, the domestic division of labour and power, the social construction of childhood, and functionalist, Marxist, feminist, postmodernist and New Right perspectives.
Sources & how we know this
- WJEC GCE AS and A Level in Sociology specification — WJEC (2015)