. Author manuscript; available in PMC: 2012 Aug 1.

Published in final edited form as: J Speech Lang Hear Res. 2011 Mar 8;54(4):1170–1181. doi: 10.1044/1092-4388(2010/09-0246)

Table 3.

Fixed (Top) and Random (Bottom) Effects Estimates of the Predictors of Grammatical Growth in the SLI Group

Parameter	Predictor	Coefficient(SE)	p value
		Fixed
Intercept (initial IPSYN total score)
	Intercept	38.9(.83)	<.000
	Treatment	−1.36(1.7)	.42
	MLU at Time 1	21.9(1.8)	<.001
	MLU × Treatment	3.0(3.7)	.42
Slope (i.e., growth rate)
	Intercept	1.5(.11)	<.001
	Treatment	.24(.22)	.26
	MLU at Time 1	−.86(.22)	<.001
	MLU × Treatment	−.87(.43)	.049
		Random
Intercept		14.05	.008
Slope		.32	.14
Level 1		6.8