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. 2000 Jul 3;67(2):369–382. doi: 10.1086/303006

Table 5.

ICCs on Liability- and Disease-Related Measures

	Discordant Pairs			Control Pairs
Variable	ICC_DZ(r ± SE)	ICC_MZ(r ± SE)	t_MZ>DZ	ICC_DZ(r ± SE)	ICC_MZ(r ± SE)	t_MZ>DZ	t_CMZ>DMZ^a
Liability canonical variate	.18 ± .18	.43 ± .19^*	1.31^**	.05 ± .19	.62 ± .12^*	3.59^*	1.05
Disease canonical variate	.00 ± .18	.11 ± .23	.55	.30 ± .18^*	.65 ± .11^*	2.23^*	3.06^*
Spatial working memory	.16 ± .18	.42 ± .20^*	1.31^**	.05 ± .19	.40 ± .16^*	2.17^*	−.11
Divided attention	.42 ± .15^*	.32 ± .21^**	−.51	.09 ± .19	.26 ± .18^**	1.11^**	−.29
Choice reaction time	.00 ± .18	.02 ± .24	.12	.00 ± .19	.49 ± .14^*	3.08^*	2.63^*
Verbal episodic memory	.00 ± .18	.23 ± .22	1.18^**	.58 ± .13^*	.69 ± .10^*	.72	2.57^*
Recall intrusions	.00 ± .18	.64 ± .14^*	3.25^*	.14 ± .19	.15 ± .18	.05	−2.73^*
Semantic clustering	.03 ± .18	.18 ± .23	.78	.21 ± .18^**	.43 ± .15^*	1.34^**	1.36^**
Visual episodic memory	.09 ± .18	.00 ± .23	−.44	.01 ± .19	.49 ± .14^*	2.98^*	2.75^*
Motor speed	.17 ± .18	.00 ± .24	−.86	.27 ± .18^**	.36 ± .18^*	.55	2.02^*
Overall IQ	.17 ± .18	.40 ± .20^*	1.20^**	.44 ± .16^*	.79 ± .07^*	2.19^*	2.17^*

^a

CMZ = control MZ; DMZ = discordant MZ.

^*

P<.05.

^**

P<.10.