Table 6. Comparing Countries and Gender.
| CO-Span (complex working memory task) | Finland > Sweden & Iceland & Norway*** |
| Boys = Girls | |
| Math Task (concurrent working memory task) | Finland=Sweden=Iceland=Norway |
| Boys = Girls | |
| Stroop Neutral (processing speed) | Finland & Iceland > Sweden & Norway*** |
| Boys > Girls** | |
| Stroop Congruent (processing speed) | Finland & Iceland > Sweden & Norway*** |
| Boys > Girls** | |
| Stroop Incongruent (inhibition) | Finland & Iceland > Sweden & Norway*** |
| Boys > Girls** | |
| IVA+Plus Full Scale Attention attention) | Finland=Sweden=Iceland=Norway ns. |
| Boys < Girls* | |
| IVA+Plus Full Scale Response Control (response control) | Finland & Iceland > Sweden & Norway† |
| Boys < Girls** |
†p = .05. *p < .05. **p < .01. ***p < .001.