. Author manuscript; available in PMC: 2021 Jul 17.

Published in final edited form as: Behav Genet. 2020 Jul 4;50(4):247–262. doi: 10.1007/s10519-020-10006-y

Table I:

Correlations, means, and standard deviations among constructs for Cohort I (lower diagonal) and Cohort II (upper diagonal)

	1	2	3	4	5	6	Mean (SD)
1. BM ADHD symptoms ^a	_	.12	−.15	.11	.19^*	.23^*	−.13 (1.72)
2. AC impulsivity/ activation ^a	.18^*	_	.21^**	.20^**	.37^**	.27^**	−.12 (2.92)
3. AM hostility	−.04	.24^**	-	.21^*	.29^*	.25^**	10.15 (3.21)
4. AM depressive symptoms ^a	−.16	−.01	.14^*	-	.18^*	.13	0.00 (1.00)
5. AC ADHD symptoms	−.02	.28^**	.33^**	.01	-	.63^**	10.27 (5.63)
6. AC aggression ^b	−.04	.23^*	.44^**	−.01	.66^**	-	54.73 (5.66)
Mean (SD)	0.15 (1.75)	.01 (3.08)	11.03 (3.09)	0.00 (1.00)	8.19 (5.50)	52.28 (5.36)	-

Cohort I is shown on the lower diagonal and Cohort II is shown on the upper diagonal. BM: Birth Mother; AC: Adopted Child; AM: Adoptive mothers.

p < .05

^**

p <.01.

Standardized scores

t-scores