A researcher investigated college students' self-reported helpfulness in common areas. The college has 4 main departments, with 200 students per department.
He conducted face-to-face interviews individually with 10 students. One of the questions in the interview was, 'How many times have you assisted in cleaning or tidying the college common room this term?' The results from this question are shown in Table 1.
Table 1 Number of times each student assisted with tidying this term
| Student | Number of times assisted |
|---|---|
| 1 | 2 |
| 2 | 14 |
| 3 | 1 |
| 4 | 0 |
| 5 | 3 |
| 6 | 2 |
| 7 | 1 |
| 8 | 1 |
| 9 | 18 |
| 10 | 2 |
Investigator effects sometimes occur in interviews.
Explain two modifications that would help to minimise investigator effects in this study.
689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.