. Author manuscript; available in PMC: 2014 Oct 16.

Published in final edited form as: J Intellect Disabil Res. 2011 Jan 18;55(3):324–338. doi: 10.1111/j.1365-2788.2010.01363.x

Table 2.

Results of unconditional growth models for each of the social skills scales

Variable	Cooperation	Assertion	Responsibility	Self-control
Intercept parameter (γ₀₀)	11.98^***	15.95^***	12.48^***	13.13^***
By status	−2.32^***	−2.75^***	−3.82^***	−3.35^***
Intercept variance component (δ₀)	7.78^***	8.95^***	9.41^***	9.09^***
Slope parameter (γ₀₁)	−0.01	0.03	0.54^***	0.13
By status	0.41^*	0.22	0.09	0.45^**
Slope variance component (δ₁)	0.39^***	0.31^***	0.29^***	0.50^***

P < 0.05,

^**

P < 0.01,

^***

P < 0.001.