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. Author manuscript; available in PMC: 2016 Jan 25.
Published in final edited form as: Int J Lang Commun Disord. 2014 Jul 18;49(6):761–770. doi: 10.1111/1460-6984.12115

Table 1.

Means, standard deviations and ranges for ages and standardized test scores

SLI Age (months) IQa ELSb RLSc ODd
Mean 97.07 104* 70.47* 80.47 6.87*
SD 11.90 8.77 10.31 17.41 2.50
Range 74–116 89–122 54–84 50–107 3–9
TD
Mean 96.28 121.56* 104.67* n.a. 11.72*
SD 13.86 7.76 10.68 n.a. 2.1
Range 76–120 110–136 91–130 n.a. 8–15

Notes:

a

IQ Standard Score was from the Columbia Mental Maturity Scale, the Leiter International Performance Scale or the Test of Nonverbal Intelligence (mean = 100, SD = 15).

b

Clinical Evaluation of Language Fundamentals—Revised: Expressive Language Index (mean = 100, SD = 15).

c

Clinical Evaluation of Language Fundamentals—Revised: Receptive Language Index (mean = 100, SD = 15).

d

Clinical Evaluation of Language Fundamentals—Revised: Oral Directions subtest (mean = 10, SD = 3).

*

p < 0.05.