. Author manuscript; available in PMC: 2015 Jan 21.

Published in final edited form as: J Speech Lang Hear Res. 2011 Dec 23;55(1):55–69. doi: 10.1044/1092-4388(2011/09-0257)

Table 5.

Growth model results for WJ3 Letter–Word Identification predicted by ΔDVAR.

Fixed effect	Coefficient	SE	df	t	p
Intercept, β₀₀	450.45	4.25	45	105.91	<.001
G2, β₁₀	21.94	2.51	45	8.73	<.001
ΔDVAR, β₀₁	−3.92	1.81	45	−2.16	.036
Month, β₂₀	6.83	0.43	45	15.84	<.001
G2 × ΔDVAR, β₁₁	1.09	1.28	45	0.86	.398
G2 × Month, β₃₀	−3.64	0.51	45	−7.13	<.001
ΔDVAR × Month, β₂₁	−0.35	0.1	45	−3.25	.003
G2 × Month × DVAR, β₃₁	0.39	0.16	45	2.42	.020

Random effect	Variance	df	χ²	p	reduction in variance
Intercept, r₀	823.64	35	322.90	<.001	0.137
G2, r₁	5.25	35	63.36	.003	0.171
Month, r₂	145.32	35	57.33	.010	0.031
G2 × Month, r₃	5.75	35	41.82	.199	0.187
Error, e	83.57