Table 5. Average Measures With Standard Deviations of IVA+Plus Across Countries and Gender.
| Group | n | Task (correct response) |
|||||
|---|---|---|---|---|---|---|---|
| IVA+Plus; attention |
IVA+Plus; response |
||||||
| M | SD | Range | M | SD | Range | ||
| Finland | |||||||
| Boys | 39 | 83.54 | 20.45 | 82.85 | 20.47 | ||
| Girls | 45 | 96.17 | 16.17 | 89.89 | 18.07 | ||
| Total | 84 | 90.38 | 19.22 | 84.00-98.93 | 86.62 | 19.43 | 76.17-99.14 |
| Sweden | |||||||
| Boys | 18 | 81.67 | 22.10 | 71.28 | 18.62 | ||
| Girls | 22 | 85.23 | 24.70 | 81.32 | 24.18 | ||
| Total | 40 | 83.63 | 23.34 | 67.00-108.00 | 76.80 | 22.17 | 65.20-94.60 |
| Norway | |||||||
| Boys | 8 | 83.63 | 18.71 | 74.00 | 24.72 | ||
| Girls | 19 | 93.89 | 20.72 | 91.05 | 12.20 | ||
| Total | 27 | 90.85 | 20.36 | 86.00 | 18.81 | 80.60-91.00 | |
| Iceland | |||||||
| Boys | 22 | 93.27 | 14.73 | 83.09 | 21.48 | ||
| Girls | 21 | 93.76 | 19.64 | 88.00 | 15.02 | ||
| Total | 43 | 93.51 | 17.10 | 77.75-106.75 | 86.49 | 18.56 | 69.50-90.40 |
Note. IVA+Plus attention = measure of attention control. IVA+Plus response = measure of response control. Range = mean value range across individual schools.