组别 | n | 理论知识 | 技能操作 |
观察组 | 49 | 93.26 ± 6.14 | 97.25 ± 3.58 |
对照组 | 49 | 85.63 ± 9.85 | 90.16 ± 5.84 |
t |
| 6.427 | 5.973 |
P |
| 0.007 | 0.012 |