Table 3.

Bivariate correlations among 2-year and 6-year cognitive assessments.

	NVDQ	VDQ	SB WM	SB ABIQ	SSP	SOC
NVDQ	—	—	—	—	—	—
VDQ	.67**	—	—	—	—	—
SB WM	.48**	.38**	—	—	—	—
SB ABIQ	.42**	.44**	.72**	—	—	—
SSP	.33**	.19**	.36**	.28**	—	—
SOC	.25**	.19**	.18*	.25**	.21**	—
BRIEF	−.14*	−.20**	−.18*	−.13	.04	−.13*

^*p < .05.

^**p < .001.

Note. NVDQ = Nonverbal Developmental Quotient; VDQ = Verbal Developmental Quotient; SB WM = Stanford-Binet Working Memory score; SB ABIQ = Stanford-Binet Abbreviated IQ score; SSP = Cambridge Neuropsychological Test Automated Battery Spatial Span; SOC = Cambridge Neuropsychological Test Automated Battery Stockings of Cambridge; BRIEF = Behavior Rating Inventory of Executive Function Global Executive Composite.