A researcher interviews Year 11 pupils face to face about their sleep. One of her questions is, "You get enough sleep before exams, don't you?"
Explain how bias could affect the data collected in this interview.
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.