Index and comparison GCSE performance in individual examination subjects
| Subject | Number of paired results (100%) | Index child obtained better grade than comparison child (%) | Comparison child obtained better grade than index child (%) | Number of pairs with equal grade (%) | Wilcoxon signed ranks test p value |
|---|---|---|---|---|---|
| NS, non-significant. | |||||
| Science A | 109 | 38 (34.9%) | 43 (39.4%) | 28 (25.7%) | 0.35 (NS) |
| Science B | 87 | 31 (35.6%) | 34 (39.1%) | 22 (25.3%) | 0.60 (NS) |
| Maths/statistics | 127 | 40 (31.5%) | 63 (49.6%) | 24 (18.9%) | 0.004 |
| English | 129 | 45 (34.9%) | 61 (47.3%) | 23 (17.8%) | 0.19 (NS) |
| English Literature | 83 | 25 (30.1%) | 42 (50.1%) | 16 (19.3%) | 0.07 (NS) |
| History | 21 | 8 (38.1%) | 8 (38.1%) | 5 (23.8%) | 0.67 (NS) |
| Geography | 28 | 11 (39.3%) | 10 (35.7%) | 7 (25.0%) | 0.81 (NS) |