Collecting data is only half the job. To be trusted, research must be careful, fair and honest — this is the mark of good sociology.
Reliability and validity
These two ideas are often confused but are different.
- Reliability means that if the study were repeated, it would give the same results. A well-structured questionnaire is usually reliable.
- Validity means the data truly measures what it claims to. Deep interviews and observation often produce valid data because they capture real feelings and behaviour.
Ideally research is both, but methods can be strong in one and weaker in the other.
Representativeness
Research is representative when the sample reflects the wider population. If a study of a whole city only asked people from one street, its findings could not fairly be applied to everyone. A larger, well-chosen sample improves representativeness.
Research ethics
Sociologists study real people, so they must act responsibly. Key ethical rules include:
- Informed consent: participants should agree to take part and know what the study involves.
- Confidentiality: personal information and identities should be kept private.
- Protection from harm: participants should not be put at risk or distress.
- Honesty: researchers should not deceive people unless there is a very strong reason and safeguards.
Avoiding bias
Bias is when a researcher's own opinions unfairly shape the results — for example, by asking leading questions that push people towards a certain answer. Good researchers stay objective, word questions neutrally, and report findings honestly even when the results surprise them. This keeps sociology fair and trustworthy.