Decision making under ambiguity and risk in adolescent-onset schizophrenia

BMC Psychiatry

Table 2 Decision-making performances of patients with AOS and healthy controls (M ± SD)

Item	Patients with AOS	Healthy Controls concontrolcontrols	T	P value	*Conken*^, d
IGT
Number of participants	71	53
Block1	−2.93 ± 4.80	−3.87 ± 4.30	−1.189	> 0.999	0.176
Block2	−0.67 ± 3.93	−1.12 ± 4.69	− 0.556	> 0.999	0.082
Block3	−0.077 ± 5.24	−0.658 ± 6.126	− 0.730	> 0.999	0.108
Block4	0.038 ± 5.89	0.20 ± 5.91	−0.211	> 0.999	0.031
Block5	−0.98 ± 6.56	1.63 ± 5.64	−3.287	0.005**	0.487
Total net score	−4.63 ± 13.79	−2.53 ± 14.97	−0.988	0.325	0..073 .0883
Total score	1441.18 ± 458.94	1521.34 ± 444.65	−1.194	0.234	0.088
GDT
Number 1(N1)	3.81 ± 3.61	0.98 ± 1.49	5.954	< 0.001***	0.912
Number 2(N2)	3.26 ± 2.3	3.92 ± 3.01	−1.376	0.978	0.211
Number 3(N3)	4.47 ± 2.40	5.90 ± 2.88	−3.002	0.046*	0.459
Number 4(N4)	6.39 ± 3.89	7.18 ± 4.23	−1.082	0.638	0.255
Total net score	3.77 ± 8.07	8.18 ± 7.12	−3.164	0.002**	0.290
Total score	− 2263.38 ± 3392.43	247.16 ± 1925.79	−5.211	< 0.001***	0.469
Use of negative^a(%) feedback (%)	63.53 ± 27.68	75.19 ± 27.64	−2.321	0.022*	0.209
Use of positive^b(%) feedback (%)	61.29 ± 32.87	69.64 ± 25.15	−1.593	0.114	0.143

Note: effect size: small effect, ≤ 0.30; medium effect, 0.31–0.50; large effect, > 0.50
*p < 0.05, **p < 0.01, *** p < 0.001

ISSN: 1471-244X