Table 2 Dummy Variable Coding for K-3 Sample. Four groups are coded by three variables, as follows:
From: Martial arts as a mental health intervention for children? Evidence from the ECLS-K
| Â | K, not 3 code | 3, not K code | BothK3 code |
|---|---|---|---|
Martial in K, not 3 | 1 | 0 | 0 |
Martial in 3, not K | 0 | 1 | 0 |
Martial in K and 3 | 0 | 0 | 1 |
Martial in neither K nor 3 | 0 | 0 | 0 |