Table 1.

Scores on standardized tests for children in the TD and MD groups

	TD (N=20)	MD (N=20)	Sig
	Mean (SD) [min-max]	Mean (SD) [min-max]
Male/Female	9/11	7/13	n.s.
Age (years:months)	11:6 (1:7) [8:6–13:10]	11:5(1:6) [9:2-13:10]	n.s.
WASI^a

Verbal	114.3 (13.7) [90–141]	101.5 (13.7) [81–139]	<.005
Performance	110.6 (15.4) [84–138]	92.6 (9.6) [77–109]	<.001
Full	114 (15.4) [86–144]	96.4 (9.2) [82–116]	<.001
CMAT^a

Basic Composite Score	113 (9.5) [95–159]	79 (6.0) [62–93]	<.001
Woodcock-Johnson III^a

Math Fluency	108.1 (12.7) [95–143]	80 (5.2) [71–94]	<.001
Spatial Relations	106.5 (13.6) [75–130]	94.3 (17.3) [32–115]	<.05
CTOPP^b

Blending words	11.4 (2.7) [6–15]	9.7(3.1) [5–15]	n.s.

Note. SD, Standard Deviation; WASI, Wechsler Abbreviated Scale of Intelligence; CMAT, Comprehensive Mathematical Abilities Test; CTOPP, Comprehensive Test of Phonological Processing;

Standard Scores (M = 100 and SD = 15);

Scaled Scores (M =10, SD = 3).