TABLE 1.

Participant Characteristics

Participant characteristic	M (range, SD)/N %
Child characteristics
Age (years)	10.9 (8.1–14.0, SD = 1.82)
Full scale IQ	98.4 (63–129, SD = 15.01)
Nonverbal IQ	97.8 (75–129, SD = 14.74)
Verbal IQ	100.1 (67–123, SD = 13.87)
Gender
Male	n = 34 (81.0)
Ethnicity
Asian	n = 2 (4.8)
African American	n = 2 (4.8)
Caucasian	n = 36 (85.7)
Hispanic	n = 4 (9.5)
Native American	n = 1 (2.4)
Other/Biracial	n = 1 (2.4)
Parent characteristics
Age (years)
Mothers	42.3 (28–54, SD = 2.6)
Fathers	44.3 (36–61, SD = 4.4)
Other children in household	n = 32 (76.2)
Mother’s highest level of education
High school graduate	n = 3 (7.1)
Partial college	n = 9 (21.4)
College graduate	n = 15 (35.7)
Postcollege education	n = 13 (30.9)
Father’s highest level of education
High school graduate	n = 5 (11.9)
Partial college	n = 7 (16.7)
College graduate	n = 18 (42.9)
Postcollege education	n = 10 (23.8)