| Boxplot statistics | |||||
| Variable | lower whisker | lower hinge | median | upper hinge | upper whisker |
| Reading | 77 | 84 | 88 | 92 | 99 |
| Maths | 75 | 84 | 91 | 95 | 104 |
| W.Language | 78 | 86 | 92 | 100 | 109 |
| Knowledge | 80 | 87 | 92 | 97 | 102 |
| Skills | 79 | 85 | 90 | 97 | 106 |
| Boxplot Means | |||
| Variable | trimmed mean | unbiased SD | |
| Reading | 88.43 | 6.04 | |
| Maths | 90.43 | 7.65 | |
| W.Language | 92.57 | 8.9 | |
| Knowledge | 91.89 | 6.3 | |
| Skills | 90.3 | 7.18 | |
