2003 Sample
225 schools
8 952 learners
Average age 15.1 years
Grade 8 tested
| Indicator | Mathematics | Science |
| Average achievement (standard error) | 264 (5.5) | 244 (6.7) |
| International benchmarks | ||
| % Learners below 400 | 89.6 | 87.1 |
| % Learners at or above 400 | 10.4 | 13.0 |
| % Learners at or above 475 | 5.6 | 6.5 |
| % Learners at or above 550 | 2.1 | 2.6 |
| % Learners at or above 625 | 0.3 | 0.5 |
| Average achievement by gender (standard error) | ||
| Boys (standard error) | 264 (6.4) | 244 (7.7) |
| Girls (standard error) | 262 (6.2) | 242 (7.2) |
| Average achievement by age in years (standard error) | ||
| 12-13 | 255 (9.3) | 231 (14.4) |
| 14-15 | 302 (9.0) | 289 (10.7) |
| 16-17 | 214 (3.7) | 182 (5.2) |
| 18-19 | 205 (7.4) | 164 (9.3) |
| Average achievement by ex-racial department (standard error) | ||
| Ex-Department of Education and Training (Black) | 227 (2.9) | 199 (3.9) |
| Ex-House of Representatives (Coloured) | 314 (8.6) | 311 (9.9) |
| Ex-House of Delegates (Indian) | 366 (24.9) | 371 (26.3) |
| Ex-House of assembly (White) | 468 (20.3) | 483 (17.3) |
| Average achievement by test language (standard error) | ||
| Always spoken | 349 (14.6) | 347 (17.3) |
| Almost always spoken | 319 (13.0) | 310 (13.8) |
| Sometimes spoken | 247 (3.9) | 225 (4.3) |
| Never spoken | 192 (3.9) | 153 (5.2) |