Table 2.

Means (SD's) and group differences on cognitive and language functioning.

	SCT training	SCT no-training	TD control	p-value	Effect size (${\eta }_{\text{p}}^2$)	Group differences
	n = 13	n = 11	n = 18
Global cognitive functioning standard score; WPPSI-III	92.77 (10.68)	91.09 (14.98)	107.78 (13.20)	0.002	0.28	A, B < C
Receptive verbal ability standard score; PPVT-III	103.00 (11.10)	97.82 (12.33)	111.39 (10.55)	0.009	0.22	B < C
Expressive verbal ability scaled score; CELF	9.31 (2.66)	8.36 (2.87)	10.33 (1.85)	0.108	0.11

SCT, Sex Chromosome Trisomies; TD, typically developing; A, SCT training group; B, SCT no-training group; C, typical developing control group.