| Paired T-test significant level | After | Before | Stage group |
| Mean (±SD) | Mean (±SD) | ||
| 0.001 | 122.97 (±7.07) | 114.16 (±9.8) | Multimedia |
| 0.08 | 119.22 (±8.92) | 116.4 (±10.78) | Control |
| 0.01 | 0.7 | T-independent significant level |