Table 2. Pearson product-moment correlation coefficients between variables.
| Variable | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Fitness | — | |||||||||
| 2. | Age | –.20 | — | ||||||||
| 3. | Sexa | –.02 | .26 | — | |||||||
| 4. | Maternal education | .10 | –.45* | –.04 | — | ||||||
| 5. | MC. Post-error accuracy | .28† | –.26† | –.24 | .31* | — | |||||
| 6. | MI. Post-error accuracy | .12 | –.13 | –.24 | .16 | .66* | — | ||||
| 7. | MC. Post-error slowing | .05 | –.16 | –.21 | .08 | .01 | –.07 | — | |||
| 8. | MI. Post-error slowing | .19 | .00 | –.34* | –.19 | .17 | .42* | .25 | — | ||
| 9. | MC. Ne/ERN amplitude | –.43* | –.24 | –.19 | .24 | –.06 | .05 | .24 | –.04 | — | |
| 10. | MI. Ne/ERN amplitude | –.18 | –.27† | –.16 | .18 | .15 | .01 | .25 | –.16 | .64* | — |
aSex was dummy coded, 0 = girls, 1 = boys.
*Two-tailed p ≤ .05.
†One-tailed p ≤ .05.