Table A1.

Factor loadings and fit indices for academic achievement and executive function.

	Time 1	Time 2	Time 3	Time 4
Academic achievement
Letter word	0.531	0.541	0.647	0.682
Math	0.945	0.906	0.785	0.789
Vocabulary	0.629	0.602	0.560	0.530
Executive function
Head toes	0.182	0.639	0.531	0.612
Copy figures	0.198	0.547	0.498	0.540
Fit indices
CFI	0.998	0.993	0.966	0.976
RMSEA	0.025	0.043	0.091	0.077
SRMR	0.030	0.029	0.034	0.031