Item | ETO | OLM | OLG | LSA |
N | 197 | 197 | 197 | 197 |
Mean | 1.87 | 1.82 | 1.90 | 1.93 |
Grouped Median | 1.95 | 1.87 | 1.94 | 1.99 |
S.D | 0.45 | 0.47 | 0.49 | 0.52 |