| A | B |
| Questionnaires | Lists of questions given to respondents |
| Primary data | Data collected by the sociologists such as interviews |
| Secondary data | Data collected by others, such as official statistics |
| Closed Questions | Fixed answer Yes or Know |
| Qualitative Data | Written down data such as newspapers |
| Quantative Data | Numbers and graphs |
| Validity | Honest results |
| Open ended questions | Questions that require detail and opinion |
| Interviewer bias | Respondent is led by the interviewer into a particular answer |
| Population | The whole group you are studying |
| Sampling Frame | Complete list that you are studying - electoral role |
| Sample | Group taken from the sampling framw |
| Random Sampling | Everyone has equal chance of being chosen |
| Systematic sampling | Every tenth name is taken from a list |
| Snowball sampling | A sample where one respondent puts you in touch with another |
| Quota sampling | Researcher has to interview specific people |
| Pilot studies | Test questionnaires |
| Unstructured interviews | Less planned - no list of premeditated questions |
| Structured interviews | The questions are already written down to be followed |
| Reliability | Can the results be repeated with someone else |