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. Author manuscript; available in PMC: 2015 Apr 1.

Published in final edited form as: Biling (Camb Engl). 2013 May 30;17(2):347–363. doi: 10.1017/S1366728913000163

Table 4.

Predictors of Chinese/ English writing composition using stepwise regression.

	Chinese writing					English writing
Age (years)	Step	Variable	β	t	ΔR²	Step	Variable	β	t	ΔR²
5	1	Eng. writing	.42	5.79^***	.26^***	1	Chi. writing	.45	6.21^**	.26^***
	2	RAN	−.21	−2.78^**	.05^**	2	Eng. vocab.	.26	3.28^**	.09^***
	3	MA	.19	2.71^**	.04^**	3	MA	−.25	−3.22^**	.03^*
						4	PA	.20	2.39^*	.02^*
						5	Mother’s edu.	.17	2.31^*	.02^*
		Total			.35		Total			.42
6	1	Eng. writing	.41	6.15^***	.27^***	1	Chi. writing	.45	6.71^***	.27^***
	2	Dictation	.29	4.28^***	.10^***	2	Eng. vocab.	.35	5.19^***	.12^***
	3	Speed	.25	3.72^***	.06^***
		Total			.43		Total			.39
7	1	Eng. writing	.35	4.82^***	.26^***	1	Chi. writing	.42	5.88^***	.26^***
	2	Dictation	.30	3.99^***	.12^***	2	Eng. vocab.	.39	5.53^***	.15^***
	3	Speed	.24	3.21^**	.05^**
		Total			.43		Total			.41
8	1	Eng. writing	.40	5.77^***	.28^***	1	Eng. reading	.45	7.01^***	.31^***
	2	Dictation	.36	5.23^***	.12^***	2	Chi. writing	.40	6.30^***	.15^***
		Total			.40		Total			.46
9	1	Eng. writing	.44	5.85^***	.29^***	1	Eng. reading	.27	2.71^**	.36^***
	2	Chi. reading	.26	3.67^***	.07^**	2	Chi. writing	.37	5.57^***	.13^***
	3	Eng. fluency	.22	2.90^**	.04^**	3	Eng. vocab	.26	2.64^**	.03^**
		Total			.40					.52

^*

p < .05;

^**

p < .01;

^***

p <.001