| Observer | Minimum | Maximum | No. names | Mean % correct |
| selected | per name | |||
| M | 1 | 5 | 11 | 0.145 |
| D | 0 | 4 | 10 | 0.225 |
| E | 1 | 4 | 11 | 0.258 |
| K | 1 | 3 | 11 | 0.227 |
| F | 1 | 3 | 11 | 0.227 |
| C | 1 | 3 | 11 | 0.242 |
| A | 0 | 3 | 10 | 0.283 |
| L | 1 | 3 | 11 | 0.333 |
| J | 1 | 3 | 11 | 0.515 |
| B | 1 | 3 | 11 | 0.667 |