A researcher wants to find out why 240 museum volunteers missed at least one shift during the last month. The researcher plans to ask each volunteer the same questions in the same order in a structured interview. Only one researcher is available to carry out the interviews this week. The same questions could instead be printed as a questionnaire. Details of the plan are shown in the table.
| Information | Value |
|---|---|
| Number of volunteers | 240 |
| Length of each interview | 15 minutes |
| Researcher's available time | 30 hours |
Using the information in the table, explain one problem with using the structured interviews in this study and justify whether the questionnaire would be more suitable.
139 exam-style questions on OCR GCSE Psychology 7.2 Doing Research, covering 7.2.1 Experiments, 7.2.2 Interviews, 7.2.3 Questionnaires (Surveys), 7.2.4 Observations, 7.2.5 Case Studies, and 7.2.6 Correlations. Each one has a worked solution and a mark scheme showing where the marks go.