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Comparison of mean and standard deviations of EF components in Russian and Japanese children.
| EF component/country | Russia | Japan | Differences | |||
|---|---|---|---|---|---|---|
| M | SD | M | SD | U | p | |
| Cognitive flexibility | 21.4 | 1.92 | 19.8 | 2.16 | 772.5 | <0.001 |
| Visual working memory | 75.8 | 18.40 | 78.2 | 17.51 | 1,028.0 | 0.483 |
| Cognitive inhibition, time | 121.4 | 31.41 | 101.2 | 28.52 | 750.5 | <0.001 |
| Cognitive inhibition, mistakes | 11.00 | 8.16 | 11.4 | 7.75 | 1,260.0 | 0.786 |
| Physical inhibition | 27.0 | 3.97 | 27.5 | 3.36 | 1,099.0 | 0.170 |
