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Independent samples t-test of pre- and post-test DDS scores between the intervention and control groups.
| Subjects | Group (mean ± SD) | t | p | |
|---|---|---|---|---|
| Control group (n = 30) | Intervention group (n = 30) | |||
| Pre-test DDS | 68.50 ± 9.28 | 67.67 ± 5.02 | 0.433 | 0.667 |
| Post-test DDS | 68.67 ± 9.76 | 75.30 ± 6.88 | −3.041 | 0.004** |
*p < 0.05, **p < 0.01.
