Table 1.

Participant Characteristics by Recruitment Cohort.

	School-aged children (N=10)		Adolescents (N=21)
	M (SD) or N (%)	Range	M (SD) or N (%)	Range
Child Characteristics
Age in months	124.5 (26.8)	90–164	186.3 (15.2)	161–216
Gender
Male	10 (100%)		13 (62%)
Female	0 (0%)		8 (38%)
IQ	109.7 (11.5)	99–134	100.1 (17.6)	66–128
Verbal	110.0 (20.2)	87–155	102.6 (16.9)	73–131
Nonverbal	112.0 (9.7)	93–126	100.3 (18.0)	65–137
Race/Ethnicity
African American	0 (0%)		0 (0%)
Asian	0 (0%)		1 (5%)
Caucasian	9 (82%)		14 (67%)
Hispanic/Latino	1 (9%)		4 (19%)
Biracial/Other	0 (9%)		2 (9%)
Parent Characteristics
Gender
Mother	9 (901%)		17 (81%)
Father	1 (10%)		4 (19%)
Age in years	38.9 (5.0)	30–45	47.0 (9.8)	32–75
Parent Education
Partial High School	0 (0%)		0 (0%)
High School Graduate	0 (0%)		3 (14%)
Partial College	4 (36%)		5 (24%)
College Graduate	5 (46%)		11 (52%)
Post Graduate Training	1 (18%)		2 (10%)