| Subject # | Before | After | Diff | Diff (%) |
| 1 | 6.0 | 0.0 | 6.00 | 100.0% |
| 2 | 4.0 | 1.0 | 3.00 | 75.0% |
| 3 | 5.5 | 0.5 | 5.00 | 90.9% |
| 4 | 5.0 | 2.0 | 3.00 | 60.0% |
| 5 | 7.0 | 0.0 | 7.00 | 100.0% |
| 6 | 6.0 | 0.0 | 6.00 | 100.0% |
| Ave: | 5.58 | 0.58 | 5.00 | 87.7% |
| SD | 1.02 | 0.80 | 1.67 | 16.7% |
| t-test: | 0.00037 |