Table 6: 4-factor ANOVA including all significant covariates.

Table entries indicate percent of variance of each outcome measure (columns) by each predictor (row) explained within the 4-factor model. Rows with multiple predictors listed separated by colons represent interaction term predictors.

	MSEL-EL	MSEL-RL	MSEL-VR	MB-PROD	MB-M3L
MRIcort	4.0%	13.7%**	0.9%	0.4%	0.1%
MRIbgt	1.0%	2.1%	2.6%	0.0%	0.1%
Gender	10.5%*	1.1%	4.4%	9.6%	0.7%
TractEstIncome	16.4%**	12.5%*	19.1%*	1.0%	5.4%
MRIbgt:Gender	1.1%	0.9%	0.0%	0.0%	0.0%
MRIbgt:MRIcort	0.3%	0.0%	0.1%	2.4%	9.9%
Gender:MRIcort	0.6%	2.3%	0.6%	8.5%	0.5%
MRIbgt:TractEstIncome	0.7%	0.9%	0.6%	0.2%	3.4%
Gender:TractEstIncome	0.0%	0.0%	4.0%	0.5%	0.5%
MRIcort:TractEstIncome	1.1%	2.4%	0.0%	3.0%	8.0%
MRIbgt:Gender:MRIcort	0.0%	0.0%	0.0%	0.0%	0.0%
MRIbgt:Gender:TractEstIn come	0.0%	0.0%	0.0%	0.0%	0.0%
MRIbgt:MRIcort:TractEstI ncome	1.0%	0.5%	1.2%	0.0%	0.0%
Gender:MRIcort:TractEstI ncome	0.7%	4.9%	0.2%	0.6%	2.9%
MRIbgt:Gender:MRIcort:T ractEstIncome	0.0%	0.0%	0.0%	0.0%	0.0%
Total Explained Variance	37.4%	41.4%	33.8%	26.3%	31.5%

Bolded entries indicate p<0.05 by F-test (* p<0.05; ** p<0.01).

Abbreviations: MSEL-EL: Mullens expressive language T-score; MSEL-RL: Mullens receptive language T-score; MSEL-VR: Mullens visual reception T-score; MB-PROD: MacArthur-Bates production percentile; MB-M3L: MacArthur-Bates mean of 3 longest utterance percentile; MRIbgt: Presence of basal ganglia/thalamic injury on MRI; MRIcort: presence of cortical/subcortical injury on MRI; TractEstIncome: household income as estimated based on home census tract.