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Ziv, Leiser and Levine 29
Table 1
Loadings on the two factors upon varimax rotation of the 5 tasks
Factor 1 Factor 2
Matrix 0.72 -0.16
ToM1 0.71 0.19
ToM2 0.75 -0.05
EIQ 0.18 0.76
Irony 0.04 0.74
Ziv, Leiser and Levine 30
Table 2
Demographic characteristics of schizophrenic patients and healthy controls
_____________________________________________________________________
Schizophrenia Healthy Statistics
Patients Controls
_____________________________________________________________________
N 30 30
Gender ratio (M:F) (21:9) (16:14)
Age (years) 37.83+ 11.32 35.56 + 12.64 P=0.46, n.s.
Education (years) 11.43 + 2.17 12.06 + 1.11 P=0.16, n.s.
Age at onset (years) 24.28 + 11.08
Duration of illness
(years) 13.20 + 13.37
PANSS positive subscale 19.16 + 7.18
PANSS negative subscale 17.01 + 5.17
PANSS general subscale 39.96 + 9.48
PANSS total sum* 58.12 + 16.53
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* Total score 18 points
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Ziv, Leiser and Levine 31
Table 3
t-test analyses (with Bonferroni adjustment) for all tasks
Task Controls Patients Effect Observed Power
Mean SD Mean SD t(58) P
Matrix 0.72 0.18 0.36 0.18 7.719** 0.000 1.00
EIQ 0.97 0.04 0.88 0.15 2.811** 0.006 0.83
ToM1 0.98 0.06 0.91 0.17 2.304 0.024 ----
ToM2 0.90 0.18 0.65 0.40 3.088** 0.003 0.98
Irony 0.95 0.08 0.85 0.16 3.085** 0.003 0.78
Irony-
Control
0.88 0.14 0.89 0.15 0.351 0.726 ----
Ziv, Leiser and Levine 32
Table 4 Correlations between the tasks
Patients Control
Matrix EIQ ToM1 ToM2 Matrix EIQ ToM1 ToM2
EIQ 0.15 EIQ 0.27
ToM1 0.31 0.13 ToM1 0.50** 0.34
ToM2 0.36* 012 0.41* ToM2 0.60** 0.18 0.50**
Irony 0.30 (-.11) (-0.08) 0.20 Irony 0.31 0.16 0.13 0.52**
*p
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Ziv, Leiser and Levine 33
Table 5 Correlations between PANSS evaluations and tasks. (Significant
correlations are in bold.)
Matrix EIQ ToM1 ToM2 Irony
Positive (-0.192)
p=0.358
(-0.014)
p=0.944
(-0.173)
p=0.407
(-0.191)
p=0.36
(-0.293)
p=0.155
Negative (-0.524)
p=0.007
(-0.083)
p=0.692
(-0.277)
p=0.180
(-0.553)
p=0.004
(-0.423)
p=0.035
General (-0.202)
p=0.331
(-0.287)
p=0.165
(-0.244)
p=0.239
(-0.192)
p=0.562
(-0.192)
p=0.917
Total (-0.363)
p=0.074
(-0.197)
p=0.344
(-0.302)
p=0.142
(-0.326)
p=0.112
(-0.272)
p=0.188