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. Author manuscript; available in PMC: 2018 May 1.

Published in final edited form as: Dev Sci. 2015 Dec 21;20(3):10.1111/desc.12380. doi: 10.1111/desc.12380

Table 2.

Correlations between the Study Variables

Study 1 WRRMP
Variables	1 SES risk	2	3	4	5	6	7	8	9	10	11	12
2.Effortful control	−.14^*
3.Negative affect	.08	−.13^*
4.Surgency	.00	−.24^***	.05
5.Reading1	−.03	.03	−.01	−.10
6.Reading2	−.08	.00	−.02	−.04	.82^***
7.Reading3	−.10	.09	.03	−.10	.63^***	.80^***
8.Reading4	−.15^**	.15^*	−.07	−.04	.45^***	.58^***	.77^***
9.Reading5	−.17^**	.11	−.07	−.02	.33^***	.48^***	.71^***	.91^***
10.Reading6	−.17^**	.10	−.07	−.02	.34^***	.48^***	.68^***	.88^***	.91^***
11.Math4	−.15^**	.08	−.14^*	.02	.49^***	.55^***	.59^***	.63^***	.56^***	.54^***
12.Math5	−.19^**	.04	−.04	.05	.40^***	.49^***	.58^***	.61^***	.58^***	.57^***	.88^***
13.Math6	−.22^***	.01	−.07	.10	.29^***	.36^***	.49^***	.57^***	.57^***	.60^***	.77^***	.83^***

Study 2 SECCYD
Variables	1 SES risk	2	3	4	5	6	7	8	9
2.Effortful Control	−.24^***
3.Negative affect	.05	−.26^***
4.Surgency	.05	−.33^***	.10^**
5.Reading 1^st grade	−.38^***	.28^***	−.10^**	−.01
6.Reading 3^rd grade	−.39^***	.28^***	−.03	.01	.80^***
7.Reading 5^th grade	−.41^***	.26^***	.01	.04	.76^***	.88^***
8.Math 1^st grade	−.31^***	.23^***	−.07^*	−.02	.64^***	.57^***	.54^***
9.Math 3^rd grade	−.31^***	.22^***	−.04	−.01	.59^***	.62^***	.59^***	.68^***
10.Math 5^th grade	−.38^***	.23^***	−.07^*	−.02	.56^***	.59^***	.61^***	.68^***	.74^***

Note:

^*

p < .05,

^**

p < .01,

^***

p < .001.