Table 1.

Demographic Characteristics of Subjects with Schizotypal Personality Disorder and Normal Comparison Subjects

	Subjects with Schizotypal Personality Disorder (n = 32)		Comparison Subjects (n = 29)		Analysis by Student’s t Test (Two-Tailed)
Characteristic	Mean	SD	Mean	SD	t	df	p
Age (y)	30.0	9.2	32.0	10.5	−.79	59	.43
Education (y)	15.6	2.1	16.5	1.7	−1.82	59	.07
IQ	115.8	10.5	118.5	9.8	−1.03	59	.31
Socioeconomic Status^a
Parental	4.1	1.0	4.4	.7	−1.61	59	.11
Self	2.8	1.2	4.0	1.0	−4.11	59	<.01
Edinburgh Handed Inventory^b	63.7	23.5	72.8	21.9	−1.48	53	.15
Race
African American	3		2
White	27		27
Asian	2		0

IQ, intelligence quotient.

Higher numbers represent higher socioeconomic status, based on the Hollingshead two-factor index of socioeconomic status.

Data were missing for three schizotypal personality disorder and three normal comparison subjects.