Table 2.
Correlations between cognitive abilities and academic achievement at primary (top line), secondary (middle line), and high (bottom line) levels of school education.
| Variables | Language | Math | Biology |
|---|---|---|---|
| Processing speed | −0.02 −0.06 0.06 |
−0.09 * −0.06 0.04 |
−0.06 −0.04 0.01 |
| Working memory | 0.15 ** 0.11 ** 0.14 ** |
0.22 ** 0.11 * 0.10 |
0.17 ** 0.01 0.10 |
| Number sense | 0.24 ** 0.10 * 0.06 |
0.26 ** 0.13 ** 0.07 |
0,22 ** 0.04 0.10 |
| Fluid intelligence | 0.47 ** 0.33 ** 0.18 ** |
0.48 ** 0.36 ** 0.10 |
0.43 ** 0.27 ** 0.08 |
* p < 0.05, ** p < 0.01; top line—primary school, middle—secondary school, bottom—high school.