Table 1:

Correlations of study variables.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19
1. Intervention	–
2. Temperature	.01	–
3. Time	.10	.11	–
4. Gender	−.03	−.18†	.03	–
5. Age	−.03	−.18†	.12	−.24*	–
6. Race	.00	.02	.15	−.14	.02	–
7. Hispanic	.01	−.01	.16	−.06	−.02	.45***	–
8. Height (inches)	−.12	−.03	−.09	.02	.36**	−.21†	−.25*	–
9. Weight (pounds)	.02	.00	.03	−.04	.30**	−.05	−.09	.69***	–
10. BMI	.06	−.01	.04	−.04	.22*	.02	−.02	.49***	.96***	–
11. HR Baseline	−.23*	−.13	.15	−.06	.12	.29*	.10	.15	.31*	.30*	–
12. HR Distress Task	−.27*	−.18	.10	.00	.17	.24*	.13	.11	.26*	.26*	.92***	–
13. HR Positive Task	−.33**	−.10	.07	.07	.11	.08	.13	.20†	.29*	.26*	.78***	.87***	–
14. RSA Baseline	.35**	−.18	−.04	.04	.16	−.14	.01	.00	−.15	−.14	−.53***	−.42***	−.37**	–
15. RSA Distress Task	.35**	−.06	−.04	.08	−.07	−.21†	−.03	.00	−.18	−.18	−.58***	−.61***	−.57***	.74***	–
16. RSA Positive Task	.31**	−.08	−.04	.02	−.07	−.03	.04	−.08	−.29*	−.28*	−.41***	−.46***	−.54***	.62***	.79***	–
17. SCL Baseline	−.12	−.05	−.01	−.00	−.06	.36**	.24*	−.05	.03	.07	.31**	.23*	.11	−.24*	−.26*	.02	–
18. SCL Distress Task	−.03	.02	.06	−.03	.00	.36**	.25*	−.07	.05	.10	.27*	.20†	.05	−.16	−.25*	.01	.91***	–
19. SCL Positive Task	−.08	.07	.06	−.12	.03	.28**	.13	−.11	.04	.10	.31*	.27*	.12	−.18	−.25*	−.01	.71***	.79***	–

^†p < .1

^*p < .05

^**p < .01

^***p < .001

Note: Intervention was dummy-coded with Attachment and Biobehavioral Catch-up (ABC; treatment condition) coded as 1 and Developmental Education for Families (DEF; control condition) coded as 0. For the Gender variable, female was coded as 1 and male was coded as 0. For the Race variable, White was coded as 1 and non-White was coded as 0. For the Hispanic variable, Hispanic was coded as 1 and non-Hispanic was coded as 0. Correlations with RSA are presented with the log-transformed variables.