Table I. Open in new tab Demographics .... | Oxford Academic

Table I.

Open in new tab

Demographics

	Siblings (N = 67)	Comparison peers (N = 67)
Age: Range (M; SD) in years	8–16 (12.2; 2.4)	8–16 (12.3; 2.4)
Female gender	55% (N = 37)	55% (N = 37)
Race/ethnicity
White/non-Hispanic	81% (N = 54)	85% (N = 57)^a
Black/non-Hispanic	13% (N = 9)	13% (N = 9)
White/Hispanic	3% (N = 2)	2% (N = 1)
Other/unknown	2% (N = 1)
Mother’s education (median category)	University graduate	University graduate
Household income (median category)	$100,000–$124,999	$75,000–$99,999^b
Married/partnered parents	85% (N = 57)	82% (N = 54)

	Siblings (N = 67)	Comparison peers (N = 67)
Age: Range (M; SD) in years	8–16 (12.2; 2.4)	8–16 (12.3; 2.4)
Female gender	55% (N = 37)	55% (N = 37)
Race/ethnicity
White/non-Hispanic	81% (N = 54)	85% (N = 57)^a
Black/non-Hispanic	13% (N = 9)	13% (N = 9)
White/Hispanic	3% (N = 2)	2% (N = 1)
Other/unknown	2% (N = 1)
Mother’s education (median category)	University graduate	University graduate
Household income (median category)	$100,000–$124,999	$75,000–$99,999^b
Married/partnered parents	85% (N = 57)	82% (N = 54)

Not different from sibling sample, McNemar, p = .56.

Not different from sibling sample, Wilcoxon signed-rank test, p = .95.

Not different from sibling sample, McNemar, p = .75.

Table I.

Open in new tab

Demographics

	Siblings (N = 67)	Comparison peers (N = 67)
Age: Range (M; SD) in years	8–16 (12.2; 2.4)	8–16 (12.3; 2.4)
Female gender	55% (N = 37)	55% (N = 37)
Race/ethnicity
White/non-Hispanic	81% (N = 54)	85% (N = 57)^a
Black/non-Hispanic	13% (N = 9)	13% (N = 9)
White/Hispanic	3% (N = 2)	2% (N = 1)
Other/unknown	2% (N = 1)
Mother’s education (median category)	University graduate	University graduate
Household income (median category)	$100,000–$124,999	$75,000–$99,999^b
Married/partnered parents	85% (N = 57)	82% (N = 54)

	Siblings (N = 67)	Comparison peers (N = 67)
Age: Range (M; SD) in years	8–16 (12.2; 2.4)	8–16 (12.3; 2.4)
Female gender	55% (N = 37)	55% (N = 37)
Race/ethnicity
White/non-Hispanic	81% (N = 54)	85% (N = 57)^a
Black/non-Hispanic	13% (N = 9)	13% (N = 9)
White/Hispanic	3% (N = 2)	2% (N = 1)
Other/unknown	2% (N = 1)
Mother’s education (median category)	University graduate	University graduate
Household income (median category)	$100,000–$124,999	$75,000–$99,999^b
Married/partnered parents	85% (N = 57)	82% (N = 54)

Not different from sibling sample, McNemar, p = .56.

Not different from sibling sample, Wilcoxon signed-rank test, p = .95.

Not different from sibling sample, McNemar, p = .75.