TABLE 2.

Correlations between measures of test-retest reliability (TRR ICCs), effect sizes (Cohen’s d), Time1 activation (beta weights, mean and standard deviation across participants), and familiality (MZ twin correlations) for the unthresholded parcels analysis (i.e., whole brain parcelation/segmentation).

	Cortical MMP Parcelation						Subcortical Freesurfer Segmentation
	Response Inhibition
Correct Stop vs. Correct Go		ICC	CohensD	MBetas	SDBetas	Familiality		ICC	CohensD	MBetas	SDBetas	Familiality
	ICC	1	0.26**	0.31**	0.29**	0.27**	ICC	1	0.07	0.03	0.49*	0.31
	CohensD		1	0.97**	−0.11*	0.11*	CohensD		1	0.99*	0.02	0.09
	MBetas			1	0.002	0.17**	MBetas			1	−0.008	0.05
	SDBetas				1	0.32**	SDBetas				1	0.50*
	Familiality					1	Familiality					1
Error Monitoring
Incorrect Stop vs. Correct Go		ICC	CohensD	MBetas	SDBetas	Familiality		ICC	CohensD	MBetas	SDBetas	Familiality
	ICC	1	0.35**	0.34**	0.43**	0.36**	ICC	1	0.07	0.02	0.05	0.38
	CohensD		1	0.98**	0.03	0.09	CohensD		1	0.99**	−0.09	−0.01
	MBetas			1	0.04	0.08	MBetas			1	−0.07	−0.07
	SDBetas				1	0.19**	SDBetas				1	0.24
	Familiality					1	Familiality					1

ICC, Intraclass correlation coefficients; CohensD, effect sizes based on Time 1 data (mean/SD of beta weights across subjects -based on full sample except outliers-, calculated per parcel); MBetas, Time 1 beta weights; SDBetas, standard deviation of Time 1 beta weights; Familiality, correlations of beta weights between monozygotic twins. Pearson correlations, *<0.05, **<0.01.