		1st stage	2nd stage
	Predictors	Standardized Coefficients Beta
	Age	0.17*	0.10
	Gender^a	0.15*	0.08
	Mother’s education^b	0.27**	0.19**
IN	Inhibition subtest		0.12
IN	Grass/snow task		0.22**
WM	Digit span task		0.27**
PL	Stockings of Cambridge		0.12
CF	Dimensional Change Card Sort		0.09
CF	Intra-/Extradimensional Set Shift		−0.02
	Model summary:
	R	0.52**	0.70**
	R²kor (Adjusted R Square)	0.25**	0.46**
	Δ R² (R Square Change)	0.25**	0.21**