Table 2.
Mean scoresa (and standard deviations) on standardized language measures among the three participant groups at 6 years of age.
| Persistent Language Delay (n = 10) | Late-Bloomer (n = 10) |
Typical Controls (n = 15) |
|
|---|---|---|---|
| CLDS-R | 57.7 (6.2) | 68.9 (3.7) | 72.5 (5.3) |
| PPVT-R | 115.0 (9.9) | 117.6 (11.9) | 132.2 (14.1) |
| OLSDT | 50.4 (3.9) | 56.2 (1.9) | 59.4 (5.6) |
Notes. CLDS-R = Child Language Disorder Scale-Revised (school versions: Lin et al., 2009); PPVT = Peabody Picture Vocabulary Test (Lu and Liu, 1998); OLSDT = Oral Language Syntax ability Diagnostic Test (Yang et al., 2005).
a
Raw score in CLDS-R; standard score in PPVT; t-score in OLSDT.