Table 1.

Group-specific means, standard deviations (SD), and significance values of gender differences in age and intelligence measures

	Age	Full-scale IQ	Performance IQ	Verbal IQ
	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD
Combined sample (n = 65)	28.2 ± 7.3	100.1 ± 12.7	99.9 ± 12.5	100.9 ± 13.4
Males (n = 30)	27.9 ± 7.1	100.3 ± 11.7	98.2 ± 13.0	101.9 ± 10.9
Females (n = 35)	28.5 ± 7.5	100.0 ± 13.7	101.3 ± 12.1	100.0 ± 15.4
Gender difference	P ≤ 0.75	P ≤ 0.94	P ≤ 0.33	P ≤ 0.56