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Table 2.
The video outcome scale used to assess the graded improvement
| Gradings |
|---|
| + 5 Much better |
| + 4 |
| + 3 |
| + 2 |
| + 1 |
| 0 Unchanged |
| -1 |
| -2 |
| -3 |
| -4 |
| -5 Much worse |