Skip to main content
. Author manuscript; available in PMC: 2018 May 17.
Published in final edited form as: J Speech Lang Hear Res. 2014 Jun 1;57(3):1011–1025. doi: 10.1044/2014_JSLHR-L-12-0282

Table 2.

Participant description information, including summary of test results for the specific language impairment (SLI), age-matched (AM), and vocabulary-matched (VM) groups.

SLI (n= 48)
 AM (n= 44)
 VM (n= 39)
Measure M SD M SD M SD F df p
Age 56.96c 5.77 55.89b 6.08 47.67b,c 7.94 24.64 2, 128 .000
Mother’s education 14.65 1.71 14.91 1.84 15.49 1.79 2.47 2, 128 .089
K–ABC 101.48a 12.79 110.93 12.19 107.13 15.20 5.84 2, 128 .004
PPVT–III 94.27a,c 10.26 104.66a 11.35 101.13c 16.59 7.87 2, 128 .001
EVT
 SS 92.81a,c 7.19 108.5a 12.08 106.49c 9.81 34.65 2, 128 .000
 RS 42.15a 6.13 52.19a,b 9.79 44.72b 7.80 18.92 2, 127 .000
BBTOP WI 77.48a,c 10.02 99.61a 10.12 99.23c 11.26 67.30 2, 128 .000
CASL
 SC 89.83a,c 12.06 106.43a 12.15 104.74c 10.26 28.53 2, 128 .000
 PC 90.88a 17.26 103.30a 19.95 100.36 20.91 5.21 2, 128 .007
 A 8.15a,b 3.68 12.26a,b 3.32 9.36b 3.99 14.81 2, 127 .000
SPELT–P2 72.10a,c 11.39 109.05a 7.71 104.90c 10.75 184.40 2, 128 .000
NWR PPC 54.40a 15.90 72.36a,b 16.96 62.59b 17.13 12.97 2, 125 .000

Note. Age is reported in months. Values are standard scores. The normative mean was 100 (SD =15). K-ABC = Nonverbal scale of the Kaufman Assessment Battery for Children, Second Edition (Kaufman & Kaufman, 2004); PPVT–III = Peabody Picture Vocabulary Test—3rd Edition (Dunn & Dunn, 1997); EVT–SS = standard score on the Expressive Vocabulary Test (Williams, 1997); EVT–RS = raw score on the Expressive Vocabulary Test (Williams, 1997); BBTOP = Bernthal-Bankson Test of Phonology (Bankson & Bernthal, 1990); WI = Word Inventory subtest; CASL = Comprehensive Assessment of Spoken Language (Carrow-Woolfolk, 1999); SC = Sentence Completion subtest; PC = Paragraph Comprehension subtest; A = Antonyms Subtest raw scores; SPELT–P2 = Structured Photographic Expressive Language Test—Preschool 2 (Dawson et al., 2005); NWR = nonword repetition, measured in percentage of phonemes correct (PPC).

a

Differences in means between SLI and AM groups indicated are significant at the .05 level.

b

Differences in means between AM and VM groups indicated are significant at the .05 level.

c

Differences in means between SLI and VM groups indicated are significant at the .05 level.