Table 4.
Summary statistics for monolingual English-speaking children on measures of percent consonants correct–revised (PCC-R) and accuracy of early-, middle-, and late-developing phonemes.
| Measure | n | M | SD | Min | Q1 | Mdn | Q3 | Max |
|---|---|---|---|---|---|---|---|---|
| Overall | ||||||||
| PCC-R | 32 | 80.68 | 13.87 | 40.20 | 70.44 | 83.70 | 91.00 | 99.02 |
| Early-developing phonemes (English) | 32 | 86.78 | 11.63 | 50.56 | 82.33 | 91.44 | 95.57 | 100.00 |
| Middle-developing phonemes (English) | 32 | 82.16 | 17.30 | 24.14 | 77.59 | 87.82 | 92.98 | 100.00 |
| Late-developing phonemes (English) | 32 | 71.86 | 19.43 | 32.43 | 54.94 | 76.91 | 87.07 | 98.75 |
| Disordered | ||||||||
| PCC-R | 6 | 66.15 | 15.57 | 40.20 | 59.09 | 70.60 | 76.47 | 81.82 |
| Early-developing phonemes (English) | 6 | 76.85 | 13.78 | 50.56 | 75.23 | 83.60 | 84.30 | 86.36 |
| Middle-developing phonemes (English) | 6 | 63.21 | 27.43 | 24.14 | 42.92 | 72.12 | 85.34 | 87.93 |
| Late-developing phonemes (English) | 6 | 50.90 | 11.06 | 39.74 | 43.35 | 46.95 | 60.28 | 64.86 |
| Typical | ||||||||
| PCC-R | 26 | 84.03 | 11.31 | 61.50 | 78.04 | 86.56 | 92.93 | 99.02 |
| Early-developing phonemes (English) | 26 | 89.08 | 10.03 | 66.66 | 84.20 | 93.02 | 95.64 | 100.00 |
| Middle-developing phonemes (English) | 26 | 86.53 | 10.71 | 60.34 | 84.55 | 88.70 | 93.16 | 100.00 |
| Late-developing phonemes (English) | 26 | 76.70 | 17.72 | 32.43 | 67.85 | 80.89 | 88.42 | 98.75 |