Table 2.

Correlations between reading fluency, arithmetic fact fluency, and cognitive measures for first (N = 67), second (N = 83), and third (N = 66) grades.

	First grade					Second grade					Third grade
Variable	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5
1. Word reading fluency – TOWRE
2. Arithmetic fact fluency	0.54**					0.46**					0.51**
3. RAN digits	-0.49**	-0.55**				-0.42**	-0.51**				-0.54**	-0.40**
4. WM – Digit span backward	-0.16	0.12	-0.27*			0.27*	0.30**	-0.11			0.20	0.14	-0.26*
5. WM – CSOT	0.34**	0.26*	-0.15	0.10		0.32**	0.23*	-0.39**	0.34**		0.17	0.04	-0.15	0.31*
6. Inhibition – Stroop	0.60**	0.32**	-0.55**	0.16	0.00	0.26*	0.25*	-0.21	0.14	0.08	-0.02	-0.01	-0.05	-0.07	0.08

^∗p < 0.05; ^∗∗p < 0.01.