Table 4.
Correlations among all scores controlled by age and intelligence.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||
| Mathematics tests | (1) Calculation | 1 | |||||||||
| (2) Fluency | 0.54∗∗ | 1 | |||||||||
| (3) Applied problems | 0.52∗∗ | 0.43∗∗ | 1 | ||||||||
| (4) Quantitative concepts | 0.55∗∗ | 0.45∗∗ | 0.62∗∗ | 1 | |||||||
| (5) Math calculation skills | 0.83∗∗ | 0.62∗∗ | 0.45∗∗ | 0.49∗∗ | 1 | ||||||
| (6) Math reasoning | 0.59∗∗ | 0.48∗∗ | 0.87∗∗ | 0.87∗∗ | 0.58∗∗ | 1 | |||||
| Numerical comparison Task (RTs) | (7) Distance effect – congruent | -0.06 | -0.13 | -0.09 | -0.05 | -0.07 | -0.11 | 1 | |||
| (8) Distance effect – incongruent | -0.15 | -0.05 | -0.21∗ | -0.23∗ | -0.03 | -0.21∗ | 0.08 | 1 | |||
| Size comparison task (RTs) | (9) Congruency effect – large distance | 0.09 | 0.13 | 0.19 | 0.14 | 0.15 | 0.17 | -0.24∗ | -0.10 | 1 | |
| (10) Congruency effect – small distance | 0.21∗ | 0.19∗ | 0.14 | 0.12 | 0.34∗∗ | 0.16 | -0.20∗ | -0.01 | 0.04 | 1 |
∗p ≤ 0.05, ∗∗p ≤ 0.01.