In the subway Samaritan study by Piliavin et al. (1969), observers collected both quantitative and qualitative data. Outline how this qualitative data was collected during the trials.
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.