. Author manuscript; available in PMC: 2017 Sep 15.

Published in final edited form as: J Speech Lang Hear Res. 2014 Feb;57(1):308–326. doi: 10.1044/1092-4388(2013/12-0227)

Table 1.

Results of cognitive–linguistic and neurocognitive measures.

Variable	Mean raw scores (SD)	Range of raw scores	Mean standard scores (SD)	Normative mean standard score	Correlation with discrimination (r)
Linguistic
Receptive vocabulary (ROWPVT–4)	50.45 (9.023)	35–69	119.6 (6.79)^***	100	.614^**
Expressive vocabulary (MCDI)		19.29–99	61.39 (24.87)	50	.292
Cognitive
General executive composite (BRIEF–P)	91.21 (15.69)	65–129	50.26 (9.44)	50	−.118
Associated pairs (Leiter–R)	8.70 (3.95)	3–17	13.15 (3.13)^***	10	.061
Forward memory (Leiter–R)	4.05 (2.28)	1–10	10.55 (2.11)	10	.532^*
Attention sustained (Leiter–R)		“negative”–45	8.89 (4.04)	10
Fundamental visualization (Leiter–R)	39.45 (6.46)	26–50	126.4 (9.41)^***	100	.317
Fluid reasoning (Leiter–R)	10.45 (6.30)	3–26	100.1 (12.39)	100	.505^*
Nonverbal intelligence (Leiter–R)	70.90 (8.25)	53–85	123.8x(7.63)^***	100	.337
Spin-the-pots		5–16	12.7 (2.90)	12	.117

Note. ROWPVT–4 = Receptive One-Word Picture Vocabulary Test—Fourth Edition; MCDI = MacArthur-Bates Communicative Development Inventory; BRIEF–P = Behavioral Rating Inventory of Executive Function—Preschool Version; Leiter–R = Leiter International Performance Scales—Revised.

p < .025.

^**

p < .01.

^***

p < .001.