| Phonological error patterns | By KSAT | By clinicians |
|---|---|---|
| Word-medial onset deletion | 6 (6) | 5 (5) |
| Word-final coda deletion | 8 (8) | 8 (8) |
| Liquid deletion | 21 (10) | 21 (10) |
| Stopping (for a fricative) | 48 (10) | 48 (10) |
| Affrication (for a fricative) | 3 (3) | 3 (3) |
| Stopping (for an affricate) | 15 (7) | 13 (5) |
| Velar fronting | 2 (2) | 3 (3) |
| etc. | 5 (3) | 2 (1) |
| Backing | - | 4 (3) |
| Assimilation | - | 2 (2) |
| Gliding (for a nasal) | - | 1 (1) |