Introduction to Social Research Methodology

The nature and purpose of social research

Ben Stanley

Department of Social Sciences, SWPS University

June 22, 2026

Today’s lecture

  • Foundations — what social research is, what it is for, and the main types
  • Qualitative and quantitative approaches — the central methodological divide, and how to bridge it
  • The research process — the stages of a study, from choosing a topic to acknowledging its limits
  • By the end, you should be able to read any study and ask: what were they trying to find out, and how did they go about it?

Foundations of social research

What is social research?

  • Social research is the systematic investigation of human behaviours, attitudes, relationships, and social systems in order to produce reliable knowledge and insight
  • “Systematic” is the key word: it distinguishes research from casual observation or common sense by following explicit, transparent, and repeatable procedures
  • It draws on theory to frame its questions and on evidence to answer them, rather than relying on intuition, anecdote, or authority
  • Its aim is not only to describe the social world, but to explain why it works as it does — and often to inform how we might change it

Objectives of social research

  • Understand and describe social phenomena — capturing what is happening, to whom, and under what conditions
  • Identify causes and consequences of social events — moving beyond description toward explanation
  • Predict future societal trends — using patterns in existing data to anticipate what is likely to come next
  • Provide a basis for policy — supplying the evidence on which governments, organisations, and communities can act

Types of social research

  • Research is usually classified along two distinct axes — not a single list of four boxes
  • What kind of data and reasoning?
    • Qualitative — deep, subjective, interpretative; concerned with meaning and experience
    • Quantitative — numerical, statistical, generalisable; concerned with measurement and pattern
  • Does the researcher intervene, or only observe?
    • Descriptive — detailing events or situations as they are, without intervening
    • Experimental — testing hypotheses by deliberately controlling and varying conditions
  • Because these are different axes, they combine: a study can be quantitative and descriptive, or experimental and qualitative

Inductive and deductive logic

  • Research reasons in two directions, and the direction shapes the design
  • Deductive — start from theory, derive a hypothesis, then gather data to test it
    • Moves from the general to the specific; characteristic of quantitative work
  • Inductive — start from observations, look for patterns, then build theory up from them
    • Moves from the specific to the general; characteristic of qualitative work
  • Most real research cycles between the two: today’s inductive insight becomes tomorrow’s deductive test

Qualitative and quantitative approaches

Qualitative research

  • Focuses on human experiences, meanings, and interpretations — how people make sense of their social world
  • Common methods include:
    • In-depth interviews — exploring individual perspectives in detail
    • Focus groups — observing how views form and shift through interaction
    • Ethnography — immersing the researcher in a setting to observe behaviour in context
  • Produces rich, detailed, contextual data, usually from relatively small samples
  • Ideal for exploring new, sensitive, or poorly understood phenomena, where the right questions are not yet clear

Quantitative research

  • Seeks to quantify variables, measure how they are distributed, and identify patterns and relationships among them
  • Common methods include:
    • Surveys administered to large samples
    • Experiments that manipulate variables under controlled conditions
    • Statistical analyses of existing numerical data
  • Produces standardised data that can be summarised, compared, and tested for statistical significance
  • With appropriate sampling, provides broad insights that can be generalised to larger populations

Qualitative vs quantitative: a comparison

Qualitative Quantitative
Data Words, images, meanings Numbers, measurements
Logic Inductive — builds theory Deductive — tests theory
Samples Small, purposively chosen Large, ideally representative
Methods Interviews, focus groups, ethnography Surveys, experiments, statistics
Strength Depth, context, discovery Breadth, comparison, generalisation

Mixed methods combine the two — for example, interviews to design a better survey, or a survey to find cases for in-depth study.

Discuss: which approach?

  • For each question, would you reach for a qualitative or a quantitative design — or both?
    • Why has turnout among under-25s fallen over the last decade?
    • How do first-time voters describe their experience of an election?
    • Does sending a text-message reminder increase the likelihood of voting?
  • There is rarely a single right answer — the point is to match the method to the question

The research process

The stages of a study

  • A piece of research moves through a connected sequence of decisions:
    1. Choose a topic — what is worth studying, and can it be studied?
    2. Design the study — turn the topic into answerable questions
    3. Sample — decide who or what to study
    4. Collect data — gather the evidence
    5. Analyse and interpret — make sense of it
    6. Present — communicate what was found
    7. Reflect — acknowledge the limits
  • Each choice constrains the ones that follow — the chain is only as strong as its weakest link

We will follow one question through these stages: why do young people vote less than older people?

Choosing a research topic

  • A good topic is relevant — it speaks to a current societal issue or to a genuine gap in existing knowledge
  • It must be feasible: achievable within the resources, time, expertise, and access available to the researcher
  • It must be ethical: the potential benefits of the work should outweigh any risk of harm to participants
  • A well-chosen topic balances what is interesting, what is answerable, and what is responsible

Running example: “Why do young people vote less?” is relevant (turnout is falling), feasible (survey data exist), and ethically low-risk.

Research design and planning

  • Begins with crafting clear research questions or hypotheses that the study can realistically answer
  • Defining the scope: what is being studied, who is included, and when and where the research takes place
  • Deciding on methods and data-collection tools that fit the questions — qualitative, quantitative, or a mixture
  • The design is the blueprint that connects the research question to the evidence needed to answer it

Running example: we sharpen the topic into a testable question — does political interest explain the age gap in turnout?

Variables and operationalisation

  • A variable is anything that varies across cases — age, income, turnout, political interest
  • Studies often distinguish:
    • the independent variable (the presumed cause)
    • the dependent variable (the presumed effect)
  • Operationalisation turns an abstract concept into something measurable
    • “Political engagement” → did you vote?, how often do you discuss politics?, are you a party member?
  • How faithfully the measure captures the concept is exactly the question of validity

Running example: we operationalise voting as turnout in the last national election, and interest as a 0–10 self-rating.

Sampling techniques

  • Probability sampling — every member of the population has a known, non-zero chance of selection (e.g., random sampling)
    • Supports generalisation and statistical inference about the wider population
  • Non-probability sampling — participants are chosen by specific criteria or convenience (e.g., convenience, quota, or snowball sampling)
    • Quicker and cheaper, but the risk of bias is higher
  • The central concern is representativeness: how well the sample reflects the population it is meant to describe

Running example: our population is all eligible voters; a random sample of 1,500 lets us compare turnout across age groups.

Data collection methods

  • Surveys — gathering standardised information from many respondents through structured questionnaires
  • Observations — systematically noting behaviours or events as they occur, with or without participation
  • Interviews — direct questioning of participants, ranging from tightly structured to open and conversational
  • Archival sources — drawing on pre-existing records, documents, and datasets rather than collecting new data
  • The method should fit the question, the population, and the practical constraints of the study

Running example: a structured survey is the natural fit — it reaches a large, representative sample with standardised questions.

Ethics in social research

  • Informed consent — participants have a right to know what the research involves and to agree freely to take part
  • Privacy and confidentiality — personal information must be safeguarded and identities protected
  • Avoiding harm — researchers must anticipate and minimise any physical, psychological, or social discomfort
  • Independent ethical review is now a standard safeguard before data collection begins

Data analysis and interpretation

  • Qualitative analysis — identifying themes and patterns of meaning through thematic or content analysis
  • Quantitative analysis — summarising and modelling data with descriptive statistics, regression, t-tests, and related techniques
  • Analysis turns raw data into an answer to the research question — but an answer is only as trustworthy as the measures behind it

Running example: we compare turnout across age bands, then use regression to ask whether political interest accounts for the gap.

Validity and reliability

  • Two qualities determine whether we can trust a measure — and they are easily confused
  • Validity — are we measuring what we actually intend to measure? (accuracy)
  • Reliability — would the same procedure give the same result again? (consistency)
  • Picture an archer’s target:
    • Reliable but not valid — arrows tightly clustered, but off the bullseye
    • Valid but not reliable — scattered around the bullseye, none quite on it
    • Both — tightly clustered on the bullseye
  • A measure can be perfectly reliable and still wrong, so both must be established

Presenting research findings

  • Communicate clearly — explain results in plain language and avoid unnecessary jargon
  • Use visual aids — well-designed charts, graphs, and tables make patterns easier to grasp
  • Relate findings back to the original research questions or hypotheses
  • Good presentation makes the evidence accessible to its audience, whether academic, policy, or public

Running example: a clear bar chart of turnout by age, with one sentence on what it means for the original question.

Limitations and critiques

  • Every study has weaknesses; acknowledging them openly is a mark of good research, not a failure
  • Researchers should be open to feedback and critique from peers, reviewers, and the wider community
  • Identifying limitations points the way forward, clarifying what future research should address
  • Honesty about limits is what allows knowledge to accumulate and improve over time

Running example: self-reported turnout is usually over-stated — a limitation to flag, and a prompt to validate against official records.

Conclusion

Conclusion

  • Methodology matters: the quality of our conclusions depends on the quality of our methods
  • Social research is an evolving practice — new data sources, tools, and techniques continually reshape what is possible
  • The choices made at each stage — topic, design, sampling, collection, analysis, presentation — are connected and consequential
  • We followed one question — why young people vote less — from a vague idea to a defensible, if imperfect, answer; every study makes that same journey
  • Questions and discussion are welcome