What does the Research Methods strand cover?

Research Methods is the examinable strand that asks candidates to explain and evaluate the methods sociologists use. It covers the research process from aim and hypothesis to conclusion, the types of data (primary and secondary, quantitative and qualitative), sampling techniques (random, stratified, quota, snowball and opportunity), the main methods (questionnaires, structured, unstructured and semi-structured interviews, participant and non-participant observation, and laboratory and field experiments), and the criteria used to judge research: reliability, validity, representativeness and ethics. It runs through the whole course and is assessed across the question paper.

What is the difference between reliability and validity?

Reliability is about consistency: research is reliable if repeating it would give the same results, so it can be checked, which favours standardised methods such as structured questionnaires and experiments. Validity is about truth: research is valid if it really measures what it claims to and gives a true picture of social reality, which favours in-depth methods such as unstructured interviews and observation. The two often pull in opposite directions, so researchers must balance them, sometimes by combining methods.

What is the difference between primary and secondary data?

Primary data is information the researcher collects first-hand for their own study, for example through questionnaires, interviews or observation; it is tailored to the research question but time-consuming to gather. Secondary data already exists, gathered by someone else, for example official statistics, documents or earlier research; it is quicker and cheaper and can cover large populations, but it was collected for another purpose and may not fit the study exactly. This is separate from the quantitative-qualitative distinction.

Why is sampling important?

A sample is a smaller group selected to represent a larger target population, because studying everyone is usually impossible. Sampling lets sociologists draw conclusions about the whole population from a manageable group. The key idea is representativeness: if the sample reflects the make-up of the population, findings can be generalised to it; if the sample is biased, self-selected or too small, the findings cannot be generalised safely. Methods such as random and stratified sampling aim for representativeness; opportunity and snowball sampling are convenient but often unrepresentative.

Why do ethics matter in sociological research?

Ethics protect the people being studied and shape what research is possible. The main principles are informed consent (participants agree, knowing what is involved), confidentiality and anonymity (data is kept private and people cannot be identified), avoiding physical or psychological harm, honesty (no deception), and the right to withdraw. Ethics can rule out methods: covert observation, for example, breaks informed consent and relies on deception, so it is hard to justify even though it avoids the observer effect.

ScotlandSociology

SQA Higher Sociology Research Methods: a complete overview of how sociologists collect and judge evidence

A deep-dive SQA Higher Sociology guide to Research Methods. Covers the research process, primary and secondary and quantitative and qualitative data, sampling techniques, survey methods (questionnaires and interviews), observation and experiments, and how to judge research using reliability, validity, representativeness and ethics.

Generated by Claude Opus 4.814 min readHigherUpdated 2026-06-16

Reviewed by: AI editorial process; not yet individually human-reviewed

Jump to a section

What this strand actually demands
The research process and types of data
Sampling
Survey methods: questionnaires and interviews
Observation and experiments
Judging research: reliability, validity, representativeness and ethics
How this strand is examined
Check your knowledge

What this strand actually demands

Research Methods is the examinable strand that asks you to explain and evaluate how sociologists gather and judge evidence. The examiners reward candidates who can describe a method accurately, say what data it produces, and weigh its strengths and weaknesses using the criteria of reliability, validity and representativeness, alongside the ethics of research.

This guide walks through the research process, the data types, sampling, the main methods and the criteria for judging research, then sets out how the strand is examined. Each topic has a matching dot-point page with practice questions; this overview ties them together.

The research process and types of data

A study moves through ordered stages: aim, hypothesis, choice of method and sample, pilot study, data collection, analysis and conclusion. The data can be classified two ways: primary (collected first-hand) versus secondary (already existing), and quantitative (numerical) versus qualitative (descriptive). The choice depends on the aim of the study.

Sampling

A sample is selected from a target population, often using a sampling frame. Techniques include random (equal chance), stratified (proportional groups), quota, snowball (for hard-to-reach groups) and opportunity sampling. The key idea is representativeness, which determines whether findings can be generalised to the population.

Survey methods: questionnaires and interviews

Questionnaires reach large numbers cheaply and are reliable, but can lack depth and suffer low response rates. Interviews come as structured (reliable, comparable), unstructured (deep, valid) and semi-structured (a mix). Structured methods produce quantitative data; unstructured methods produce qualitative data, and the interviewer effect can lower validity.

Observation and experiments

Observation can be participant or non-participant, and covert or overt; it gives deep, valid insight into real behaviour but is hard to repeat and raises ethical issues when covert. Experiments are laboratory (controlled, reliable, but artificial) or field (realistic, valid, but harder to control); sociologists usually prefer field experiments.

Judging research: reliability, validity, representativeness and ethics

Reliability is consistency (can it be repeated?), validity is truth (does it measure what it claims?), and representativeness is whether the sample reflects the population. Ethics, informed consent, confidentiality, avoiding harm and honesty, protect participants and can limit which methods are usable.

How this strand is examined

A typical SQA profile for Research Methods:

Describe questions. Setting out the research process or a sampling technique.
Explain questions. Distinguishing primary and secondary data, or reliability and validity.
Evaluate questions. Weighing the strengths and weaknesses of a method such as questionnaires or participant observation.
Applied questions. Recommending and justifying a method for a given study, including its ethics.

SQA Higher Sociology Research Methods asks candidates to explain and evaluate how sociologists collect and judge evidence. It covers the research process (aim, hypothesis, method, sample, pilot, data, analysis, conclusion), the data types (primary and secondary, quantitative and qualitative), sampling (random, stratified, quota, snowball and opportunity, and representativeness), the main methods (questionnaires, structured, unstructured and semi-structured interviews, participant and non-participant observation, and laboratory and field experiments), and the criteria for judging research: reliability (consistency), validity (truth), representativeness (generalising from the sample) and ethics (informed consent, confidentiality, avoiding harm and honesty). The recurring skill is recommending and evaluating a method for a given aim.

Check your knowledge

A mix of recall and explanation questions covering the strand. Attempt them, then check against the solutions.

Name the main stages of the sociological research process. (3 marks)
Explain the difference between primary and secondary data. (4 marks)
Describe two sampling techniques. (4 marks)
Explain the difference between reliability and validity. (4 marks)
State two ethical principles a sociologist should follow. (2 marks)

Sources & how we know this

SQA Higher Sociology Course Specification (C868 76) — SQA (2019)