Table 1.
PSZ (N = 37) | HCS (N = 37) | Statistics | |
---|---|---|---|
Age (yr) | 36.3 ± 11.2 | 37.0 ± 11.7 | t(72) = 0.25 |
(range 19–55) | (range 21–55) | p = 0.8 | |
Male/female | 23:14 | 23:14 | χ2 = 0 |
p = 1 | |||
Black/white/other | 12:21:4 | 14:23:0 | χ2 = 4.25 |
p = 0.12 | |||
Education (yr) | 12.8 ± 2.1 | 15.5 ± 1.9 | t(72) = 5.71 |
p < 0.001 | |||
Parental education (yr)a | 13.5 ± 2.7 | 14.7 ± 2.6 | t(72) = 1.89 |
p = 0.062 | |||
Estimated IQb,f | 99.5 ± 14.8 | 115.9 ± 8.8 | t(68) = 5.54 |
p < 0.001 | |||
MCCBc,f | 37.1 ± 12.9 | 53.6 ± 7.8 | t(68) = 6.39 |
p < 0.001 | |||
WRAT 4d,f | 98.6 ± 17.0 | 115.1 ± 13.0 | t(68) = 4.53 |
p < 0.001 | |||
WTARe,f | 100.2 ± 18.2 | 115.8 ± 7.1 | t(68) = 4.61 |
p < 0.001 |
aAverage over maternal and paternal education.
bBased on the Wechsler Abbreviated Scale of Intelligence-II (Wechsler, 2011).
cComposite score on the MATRICS Consensus Cognitive Battery (Nuechterlein and Green, 2006).
dWide Range Achievement Test (Wilkinson and Robertson, 2006).
eWechsler Test of Adult Reading (Wechsler, 2001).
fData missing for 4 HCS.