. Author manuscript; available in PMC: 2023 Oct 1.

Published in final edited form as: Res Child Adolesc Psychopathol. 2022 Jun 1;50(10):1275–1288. doi: 10.1007/s10802-022-00935-z

Table 1.

Demographic Variables

	ADHD (n = 110)	Comparison (n = 90)	X² or F	df	Effect Size
Mother Characteristics

Age M (SD)	45.20 (7.53)	46.49 (5.34)	1.86	1,197	0.01^a
Race (%)				3	0.08^c
White	87	86	0.40
Black or African American	11	10	0.14
Two or more races	1	2	0.52
Other	1	2	0.52
Education Level (%)			4.45^*	1,197	0.02^a
High school diploma or GED	9	12	0.21
Technical or specialized training	16	11	0.89
Some college	22	11	4.26^*
Associate’s/2-year degree	15	8	2.37
College/University degree	19	23	0.44
Graduate degree	18	34	7.39^**
Marital Status (%)			8.22^*	3	0.20^c
Single, never married	8	3	2.11
Married or living with partner	65	82	7.28^**
Separated or divorced	25	14	3.27
Widowed	2	0	1.67

Adolescent Characteristics

Age M (SD)	16.14 (1.49)	16.03 (1.52)	0.23	1,199	0.00^a
Gender (% Male)	91	92	0.11	1	0.02^b
Race (%)				3	0.08^c
White	79	82	0.31
Black or African American	8	9	0.03
Two or more races	10	6	1.33
Other	3	3	0.06
Baseline Full-Scale IQ M (SD)	100.60 (18.02)	109.20 (15.18)	12.93^***	1, 198	0.06^a

Note. Chi-square tests were conducted for categorical variables and ANOVAs were conducted for continuous variables

^***

p < .001

^**

p <.01

p < .05

= η²

= ϕ

= V.