Research Methods - Surveys Interviews Observation and Ethics
Sociological Research Methods
Research methods appear across both papers of AQA GCSE Sociology. You need to understand how sociologists collect data, why they choose particular methods, and the ethical rules they must follow.
Key Concepts in Research
| Term | Definition |
|---|---|
| Reliability | Whether the research can be repeated by another researcher and produce the same results; standardised methods (e.g. questionnaires) are more reliable |
| Validity | Whether the data gives a true, accurate picture of what is being studied; qualitative methods (e.g. unstructured interviews) tend to be more valid |
| Representativeness | Whether the sample is typical of the wider population so findings can be generalised |
| Objectivity | Whether the researcher's own values and opinions have been kept out of the research |
| Primary data | New data collected first-hand by the researcher (surveys, interviews, observations) |
| Secondary data | Data that already exists, collected by someone else (official statistics, documents, media content) |
| Quantitative data | Numerical data that can be measured and presented in graphs and tables |
| Qualitative data | Detailed, descriptive data about people's feelings, meanings and experiences |
Sampling
Before collecting data, researchers must select a sample — a smaller group drawn from the target population.
| Sampling method | How it works | Strength | Weakness |
|---|---|---|---|
| Random | Every member has an equal chance of selection (e.g. names from a hat) | Avoids researcher bias | May not be representative by chance |
| Stratified | Population divided into subgroups (age, gender, class), then random sample from each | Ensures key groups are included | Requires detailed knowledge of population |
| Snowball | One participant recommends the next | Useful for hard-to-reach groups (e.g. criminals) | Not representative; relies on networks |
| Opportunity | Whoever is available at the time | Quick and cheap | Very unlikely to be representative |
Questionnaires and Surveys
Questionnaires are written lists of questions, either open-ended (respondents answer in their own words) or closed (tick-box, multiple choice).
Strengths:
- Quick, cheap and easy to distribute to large samples — good representativeness
- Standardised questions = high reliability (can be repeated exactly)
- Respondents can be anonymous, encouraging honesty on sensitive topics
- Produce quantitative data — easy to analyse and compare
Weaknesses:
- Low response rates — people may not return postal questionnaires
- Closed questions limit what respondents can say — low validity
- Questions may be misunderstood with no researcher present to clarify
- Impose the researcher's categories — respondents cannot raise issues the researcher did not think of
- Positivists favour questionnaires; interpretivists criticise them for lacking depth
Key study: Young & Willmott (1957) used structured interviews and surveys to study family life in Bethnal Green — produced large-scale quantitative data on the symmetrical family.
Interviews
Structured Interviews
Pre-set questions asked in the same order to every respondent. Like a questionnaire read aloud.
- Reliable and comparable across respondents
- But inflexible — cannot explore unexpected answers
Unstructured Interviews
A guided conversation with no fixed questions. The interviewer follows up on interesting points.
- High validity — respondents can express themselves freely; rich qualitative data
- But low reliability — cannot be exactly repeated
- Time-consuming and expensive for large samples
- Risk of interviewer bias — the researcher's body language, tone or prompts may influence answers
- Rapport can be built, encouraging openness
Semi-Structured Interviews
A middle ground — some set questions with freedom to explore responses.
The Interviewer Effect
Respondents may answer differently depending on the interviewer's age, gender, ethnicity or class. For example, a respondent may hide racist views from an interviewer of a different ethnicity. This reduces validity.
Key study: Dobash & Dobash (1979) used unstructured interviews to study domestic violence — the sensitive topic required trust and flexibility that a questionnaire could not provide.
Observation
Non-Participant Observation
The researcher watches but does not join in. They record behaviour from the outside.
- Less disruptive; can record natural behaviour if covert
- But the researcher may misinterpret what they see without insider knowledge
Participant Observation
The researcher joins the group and takes part in their activities.
- Can be overt (the group knows they are being studied) or covert (the researcher's identity is hidden)
| Feature | Overt PO | Covert PO |
|---|---|---|
| Access | May be refused or limited | Easier to gain access to deviant groups |
| Hawthorne effect | Participants may change behaviour | Behaviour is natural — high validity |
| Ethics | Informed consent obtained | No consent — ethically problematic |
| Note-taking | Can take notes openly | Must rely on memory — data loss risk |
| Danger | Low risk | Potentially dangerous for the researcher |
Key study: Patrick (1973) used covert participant observation to study a Glasgow gang — gained deep, valid insight but faced serious ethical and safety issues.
Strengths of participant observation:
- Very high validity — the researcher experiences the group's life first-hand
- Can access groups that would refuse formal research
- Produces rich qualitative data
Weaknesses:
- Very low reliability — impossible to repeat exactly
- Small scale — findings cannot be generalised
- Risk of going native — the researcher loses objectivity
- Covert observation raises major ethical concerns
Secondary Sources
| Source | Strengths | Weaknesses |
|---|---|---|
| Official statistics (e.g. crime rates, exam results) | Large-scale, reliable, free, allow comparisons over time | May be socially constructed — crime stats reflect policing priorities, not all crime |
| Documents (diaries, letters, media) | Provide historical insight; authentic qualitative data | May be biased, incomplete or unrepresentative |
| Previous studies | Save time and money; allow re-analysis | May be outdated; researcher had no control over how data was collected |
Ethics in Sociological Research
The British Sociological Association (BSA) sets ethical guidelines:
- Informed consent — participants must know the purpose of the research and agree to take part voluntarily
- Confidentiality — participants' identities must be protected (anonymity)
- Protection from harm — participants should not suffer physical, psychological or social harm
- No deception — researchers should not lie about the nature of the research (though covert observation involves some deception)
- Right to withdraw — participants can leave the study at any time
Ethical dilemma: Covert participant observation (e.g. Patrick's gang study) breaks informed consent and involves deception, but it may be the only way to study secretive or dangerous groups. Sociologists must weigh the scientific value of the research against the rights of participants.
Exam Technique
Methods questions often ask you to design a study. State your method, justify why it suits the topic, explain your sampling strategy, and discuss at least two practical, ethical or theoretical issues. Use the terms reliability, validity and representativeness precisely — examiners look for these.