| Categories | Respondents’ | Mean | SD | |
| Number | Percent | |||
| Low knowledge (up to 13) | 24 | 21.2 | 14.54 | 1.58 |
| Medium knowledge (14 - 15) | 52 | 46.1 | ||
| High knowledge (above 15) | 37 | 32.7 | ||
| Total | 113 | 100 | ||