TABLE 3.

Correlations between dependent variables and control variables. In order to reduce complexity, dependent variables were collapsed across T2 and T3 and across groups.

	Control variables
Dependent variables	Letter reading T1	Visuo-spatial skills T1
Letter recognition	0.21*	0.31**
Letter writing	0.81**	0.33**
Word reading	0.70**	0.25**
Word writing	0.70**	0.27**

T1 = assessment before training; *indicates a significant correlation at p < 0.05; **indicate a significant correlation at p < 0.01.