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Means and standard deviations of outcome variables, by martial arts group, kindergarten to third grade sample (n = 8851)
| Group |
Grade K Behavior: mean (sd) |
Grade 3 Behavior mean (sd) |
N for Group |
| Martial arts in K, not 3 | 3.28(0.46) | 3.16 (0.57) | 212 |
| Martial arts in 3, not K | 3.15 (0.51) | 3.12 (0.52) | 584 |
| Martial arts both K and 3 | 3.25 (0.51) | 3.17 (0.52) | 80 |
| Martial arts Neither | 3.26 (0.50) | 3.19 (0.52) | 7975 |
