| Respondents (R) | Pre-test scores (%) | Post-test scores (%) | Difference in scores (+%) |
| R1 | 20 | 70 | 50 |
| R2 | 20 | 70 | 50 |
| R3 | 20 | 60 | 40 |
| R4 | 20 | 60 | 40 |
| R5 | 60 | 90 | 30 |
| R6 | 50 | 70 | 20 |
| R7 | 20 | 60 | 40 |
| R8 | 60 | 90 | 30 |
| R9 | 50 | 80 | 30 |
| R10 | 20 | 50 | 30 |
| R11 | 20 | 50 | 30 |
| R12 | 20 | 50 | 30 |
| R13 | 20 | 80 | 60 |
| R14 | 40 | 70 | 30 |
| R15 | 40 | 90 | 50 |
| R16 | 20 | 50 | 30 |
| R17 | 30 | 70 | 40 |
| R18 | 20 | 50 | 30 |
| R19 | 20 | 40 | 20 |
| R20 | 25 | 60 | 35 |
| R21 | 30 | 55 | 25 |