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Comparison of the communication skills between the groups in different points of time as the intervention effect
| Time | Group | Average difference | The difference between the SD | P |
|---|---|---|---|---|
| Before intervention | Intervention-control | 2.82 | 1.64 | 0.089 |
| 2 weeks after the intervention | Intervention-control | −17.57 | 1.80 | 0.001 |
| 1 month after the intervention | Intervention-control | −32.85 | 1.96 | 0.001 |
SD=Standard deviation
