Variable | Before treatment (%) | After treatment (%) |
Overall correct answer | 22.4 | 26.4 |
Bilabial | 23.8 | 21.5 |
Dental-alveolar | 15.6 | 31.9 |
Palato-alveolar | 10 | 8.8 |
Palatal | 37.1 | 31.4 |
Velar | 3.8 | 15 |
Glottal | 100 | 80 |
Vowels | 84 | 76 |