. Author manuscript; available in PMC: 2017 Oct 1.

Published in final edited form as: J Exp Child Psychol. 2016 Jun 24;150:207–226. doi: 10.1016/j.jecp.2016.06.003

Table 3.

Summary of hierarchical linear regression analyses for variables predicting formal math ability

Variable	Model 1			Model 2			Model 3

	B	SE B	β	B	SE B	β	B	SE B	β
Age	<.001	<.001	.20	<.001	<.001	.16	<.001	<.001	.02
Expressive vocabulary (DVAP)	.001	.001	.11	.001	.001	.11	.001	.001	.20
ANS acuity (w)				−.10	.18	−.09	.01	.18	.01
Estimation variability (sigma)							−.47	.23	−.34^*
R²		.07			.07			.15
F for R² change		1.56			.30			4.12^*

^***

p < .001,

^**

p < .01,

p < .05