A researcher investigated the impact of minority influence techniques on pro-environmental behavior. Ten volunteers were trained to use consistent, committed arguments to persuade local residents to sign a petition for a new community recycling scheme in their neighborhood.
Each volunteer was allocated to a different street. The researcher recorded the total number of petition signatures collected by each of the 10 volunteers over a three-hour period. The results are shown in Table 1.
Table 1 Number of petition signatures collected by each of the 10 volunteers
| Volunteer | Number of signatures collected |
|---|---|
| 1 | 12 |
| 2 | 15 |
| 3 | 11 |
| 4 | 98 |
| 5 | 14 |
| 6 | 10 |
| 7 | 16 |
| 8 | 13 |
| 9 | 11 |
| 10 | 12 |
Explain why the median would be a more appropriate measure of central tendency than the mean for the data in Table 1.
235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.