Dr Aris conducted a structured non-participant observation at a youth centre, recording the social interactions of 12 young people:
The results of Dr Aris's observation are shown in Table 1.
Table 1
| Group X | Number of prosocial acts observed for younger adolescents (aged 11–12) | Group Y | Number of prosocial acts observed for older adolescents (aged 15–16) |
|---|---|---|---|
| 1 | 11 | 1 | 15 |
| 2 | 12 | 2 | 18 |
| 3 | 4 | 3 | 20 |
| 4 | 9 | 4 | 10 |
| 5 | 17 | 5 | 22 |
| 6 | 7 | 6 | 11 |
| Mean score = 10 | Mean score = 16 |
Calculate the median number of prosocial acts observed for the younger adolescents in Group X.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.