Table 9. Results from the unconditional model for reading, writing, and math.

Reading
Fixed effect	Coefficient	SE	t	df	p-Value
Slope (β10)	1.432	0.090	15.939***	59	<0.001
Random effect	SD	Variance component	χ 2	df	p-Value
Slope (γ1j)	0.633	0.400	429.965	59	>0.500
Level-1 error term (ϵij)	0.833	0.694
Writing
Fixed effect	Coefficient	SE	t	df	p-Value
Slope (β10)	1.520	0.165	9.188***	23	<0.001
Random effect	SD	Variance component	χ 2	df	p-Value
Slope (γ1j)	0.782	0.611	370.814***	23	<0.001
Level-1 error term (ϵij)	0.802	0.643
Math
Fixed effect	Coefficient	SE	t	df	p-Value
Slope (β10)	1.091	0.188	5.815***	21	<0.001
Random effect	SD	Variance component	χ 2	df	p-Value
Slope (γ1j)	0.823	0.678	208.508***	21	<0.001
Level-1 error term (ϵij)	0.847	0.718

*p < .05 **p < .01

***p < .001.