| Level | Frequency | Percentage (%) |
| Major effect (100%) | 86 | 23.3 |
| Moderate effect (75%) | 142 | 38.5 |
| Neutral (50%) | 75 | 20.3 |
| Minor effect (25%) | 28 | 7.6 |
| No effect (0%) | 37 | 10.0 |
| Total | 369 | 100 |