An IERI – International Educational Research Institute Journal
Table 2 Summary of pooled data for 13 Countries
Mathematics | Reading | Science | ||||
|---|---|---|---|---|---|---|
PBA | CBA | PBA | CBA | PBA | CBA | |
N | 4760 | 7200 | 4701 | 7094 | 4703 | 7158 |
Avg. N per item | 1555.6 | 2300.2 | 1546.9 | 2141.5 | 1553.4 | 2282.7 |
(SD) | (60.9) | (95.8) | (23.9) | (353.2) | (23.4) | (96.1) |
Avg. Age (Yrs) | 15.53 | 15.53 | 15.53 | 15.53 | 15.53 | 15.53 |
(SD) | (0.29) | (0.29) | (0.28) | (0.29) | (0.29) | (0.29) |
Female | 48.45% | 49.03% | 48.22% | 48.98% | 48.71% | 48.70% |