. Author manuscript; available in PMC: 2014 Aug 11.

Published in final edited form as: Brain Imaging Behav. 2012 Sep;6(3):417–425. doi: 10.1007/s11682-012-9152-9

Table 1.

Demographic characteristics for Chronic Schizophrenic and Normal Comparison Subjects

Characteristic	Schizophrenic Subjects N=18		Comparison Subjects N=20		Students’s t-test (two tailed)
Characteristic	Mean	SD	Mean	SD	t	df	p
Age (years)	39.2	9.0	42.1	6.5	1.2	36	.253
Education (years)^a	13.4	1.9	15.4	2.2	2.8	33	.007
WAIS-iii IQ^b	94.5	13.1	107.7	12.8	2.79	28	.009
WRAT3 RS^c	51.0	4.76	49.9	4.6	−0.54	20	0.59
SES^{a, e}	3.8	1.2	2.3	1.1	−3.7	34	0.001
Parental SES^d,e	2.9	1.0	2.3	1.2	−1.6	33	.35
handedness^a	.8	.17	.81	.13	0.22	33	.826