. Author manuscript; available in PMC: 2013 Jan 1.

Published in final edited form as: Child Neuropsychol. 2011 Jun 27;18(1):79–91. doi: 10.1080/09297049.2011.578572

Table 3.

Summary of Regression Coefficients Relating Academic Performance to Balance Beam

	WJ – Applied Probs			WJ – Letter Word			WJ – Rhyming

	Pre-test B (SE)	Post-test B (SE)	Difference B (SE)	Pre-test B (SE)	Post-test B (SE)	Difference B (SE)	Pre-test B (SE)	Post-test B (SE)	Difference B (SE)
Age	.92 (.10)^***	−.05 (.09)	--	.70 (.10)^***	−.01 (.08)	--	.50 (.10)^**	.22 (.11)	--
Male	−.12 (.06)	−12 (.05)^*	--	−.16 (.06)^*	−.04 (.05)	--	−.20 (.07)^**	−.07 (.07)	--
Head Start	−.59 (.09)^***	−.13 (.07)^*	--	−.20 (.10)	.10 (.07)	--	−.15 (.10)	−.08 (.09)	--
Treatment	.12 (.10)	−.06 (.07)	−.09 (.07)	−.01 (.11)	−.13 (.08)	−.13 (.09)	−.11 (.11)	.01 (.10)	.06 (.09)
Balance Beam^A	.18 (.03)^***	.08 (.03)^**	.02 (.02)	.12 (.03)^***	.02 (.03)	−.01 (.02)	.16 (.03)^***	.06 (.04)	.05 (.03)
Pre-test Outcome	--	.66 (.03)^***	--	--	.74 (.03)^***	--	--	.72 (.04)^***	--

Note:

p < .05;

^**

p < .01;

^***

p < .001;

B = unstandardized regression coefficient; SE = standard error of regression coefficient; A – Using pre-test score as predictor of pre-test and post-test outcomes but using difference score (EF post-test – EF pre-test) when predicting differences in outcomes (achievement post-test – achievement pre-test).Whereas results in the columns labeled pre-test and post-test do not attend to unmeasured confounder variables, the results in columns labeled difference do and are equivalent to fixed effects analyses for the special case two panel designs.