. Author manuscript; available in PMC: 2016 Oct 1.

Published in final edited form as: Learn Individ Differ. 2015 Oct 1;43:164–169. doi: 10.1016/j.lindif.2015.08.020

Table 2.

Hierarchical Regression Analyses of Memory Performance Predicting Reading Achievement

	R	R²	R²Δ	FΔ	F	β	t	sr²
a. Dependent variable: Reading Fluency
Step 1.	.42	.18			8.08^***
Verbal IQ						.33	3.12^**	.11
Age						.27	2.57^*	.07
Step 2:	.59	.35	.17	9.84^***	9.90^***
Verbal IQ						.25	2.54^*	.06
Age						.15	1.50	.02
Working Memory						.36	3.65^***	.12
Recollection						.17	1.65	.02

b. Dependent variable: Passage Comprehension
Step 1.	.44	.20			9.52^***
Verbal IQ						.40	3.97^***	.16
Age						.19	1.85	.03
Step 2:	.65	.43	.23	15.09^* 14.03^*
Verbal IQ						.28	3.11^**	.07
Age						.03	.34	.001
Working Memory						.31	3.41^***	.09
Recollection						.33	3.43^***	.09

Note:

^***

p ≤ .001;

^**

p ≤ .01;

p ≤ .05.

Reading Fluency (n= 79), Passage Comprehension (n=81).