In the classic study by Piliavin et al. (1969) investigating bystander behaviour, two female observers recorded the race, gender, and location of passengers who offered help. What level of measurement is this data?
Interval
Nominal
Ordinal
Ratio
105 exam-style questions on OCR A Level Psychology Responses to people in need, covering Piliavin et al. (1969): Subway Samaritan and Levine et al. (2001): Cross-cultural altruism. Each one has a worked solution and a mark scheme showing where the marks go.