| Variable | M | SD | n | SEM | Min | Max | Skewness | Kurtosis |
| KBT | 25.55 | 7.27 | 250 | 0.37 | 5.00 | 35.00 | −0.59 | −0.40 |
| WSTK | 26.70 | 7.51 | 250 | 0.38 | 6.00 | 42.00 | −0.31 | −0.29 |