A psychologist uses a structured interview to investigate whether staff who prepare food follow food-hygiene procedures. Each employee is asked face to face how often they have ignored a procedure during the previous month.
Explain one way in which requiring the employees to give their answers aloud could reduce the validity of the findings.
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.