. Author manuscript; available in PMC: 2010 Oct 1.

Published in final edited form as: J Speech Lang Hear Res. 2010 Apr;53(2):333–349. doi: 10.1044/1092-4388(2009/08-0183)

Table 1.

Initial language and non-verbal IQ mean scores per group

	Affected		Unaffected

	Mean	SD	Mean	SD

Omnibus¹	80.88	10.95	108.06	14.27
PPVT²	83.06	13.03	101.65	10.22
TEGI³	44.87	28.25	77.91	27.5
Non-verbal IQ⁴	96.5	9.57	104.59	9.64
Mother’s Education⁵	2.77	1.25	3.87	1.38

Omnibus Language is the summative standard score for Test of Early Language Development (TELD-3), Test of Language Development-Primary 2^nd Edition (TOLD P:2), or Clinical Evaluation of Language Fundamentals 3^rd Edition (CELF-3)

PPVT-R =standard score for Peabody Picture Vocabulary Test-Revised (PPVT-R)

TEGI = composite grammar score for Test of Early Grammatical Impairment

⁴

Non-verbal IQ = standard score for The Columbia Mental Maturity Scale (CMMS) or Wechsler Intelligence Scale for Children 3^rd Edition (WISC-III)

⁵

Mother’s educational level where 1=Some high school, no diploma, 2=High school graduate, diploma, or GED, 3=Some college, no degree, 4=Bachelor’s degree, 5=Some graduate work, 6=Graduate degree