Table 6.

Results of hierarchical regression analyses predicting TEMA and math fluency (MF) in kindergarten, Grade 2, and Grade 4.

		Kindergarten (TEMA-3)		Grade 2 (MF)		Grade 4 (MF)
Step		β	ΔR2	β	ΔR2	β	ΔR2
1.	Age	0.103	0.04	0.121	0.02	0.021	0.02
	Gender	-0.148		0.004		-0.133
2.	Nonverbal intelligence	0.525∗∗∗	0.43∗∗∗	-0.050	0.06	-0.151	0.09∗
	inhibition	0.170∗		0.098		0.271∗∗
	Working memory	0.194∗		0.241∗		0.104
3.	Number line estimation	-0.358∗∗∗	0.17∗∗∗	-0.148	0.02	-0.067	0.01
	Dot estimation	0.246∗∗		-0.002		-0.033
Total R2			0.64∗∗∗		0.10		0.12∗

^∗p < 0.05, ^∗∗p < 0.01, ^∗∗∗p < 0.001.