. Author manuscript; available in PMC: 2022 Mar 1.

Published in final edited form as: J Exp Child Psychol. 2020 Nov 20;203:105032. doi: 10.1016/j.jecp.2020.105032

Table 4.

Hierarchical regression parameters for models predicting PPVT vocabulary at age three.

	R²	β	SE	P
Vocabulary Only Model	.26			.002^**
Sex		.14	4.84	.32
Maternal education		.01	1.15	.94
CCT vocabulary		.57	.38	<.001^**

Processing Speed (Visual) Only Model	.19			.01^*
Sex		.11	5.04	.44
Maternal education		.18	1.14	.22
VRL		−.47	.02	.002^**

Vocabulary and Processing Speed Model	.31			.002^**
Sex		.15	4.70	.27
Maternal education		.04	1.12	.75
CCT vocabulary		.43	.42	.01^*
VRL		−.27	.03	.08

Note.

p < .05

^**

p < .01. R² values are adjusted.