| I.P.A. Symbols | Exercise e | Exercise f | Exercise g | Exercise h | Exercise i | Exercise j | Totals |
| Correct /i/ /I/ | 357 | 67 | 29 | 48 | 51 | 253 | 805 |
| Incorrect /i/ /I/ | 0 | 5 | 13 | 6 | 2 | 15 | 41 |
| Blank /i/ /I/ | 3 | 0 | 30 | 54 | 55 | 2 | 144 |
| Total of choices | 360 | 72 | 72 | 108 | 108 | 270 | 990 |
| Total of students 18 | 990 |