Table 3 Comparison of CDM Within- and Inter- group before and after the intervention
Groups | Control | Intervention | The independent–sample t test | |
|---|---|---|---|---|
Score of CDM | Mean ± SD | t | P | |
Pre intervention | 66.60 ± 5.42 | 66.54 ± 3.69 | 0.052 | 0.959 |
Post intervention | 65.51 ± 4.49 | 75.31 ± 7.72 | 6.494 | < 0.001 |
The paired sample t test | t = 1.197, P = 0.240 | t = 6.460, P < 0.001 |  |  |