| I.P.A. Symbols | Exercise k | Exercise l | Exercise m | Exercise n | Exercise o | Exercise p | Totals |
| Correct /i/ /I/ | 64 | 47 | 40 | 32 | 82 | 100 | 365 |
| Incorrect /i/ /I/ | 7 | 1 | 2 | 11 | 6 | 5 | 32 |
| Blank /i/ /I/ | 1 | 0 | 6 | 5 | 8 | 3 | 23 |
| Total of choices | 72 | 48 | 48 | 48 | 96 | 108 | 420 |
| Total of students 12 | 420 |