Table 1.

Variables which showed statistically significant differences between pretherapy and posttherapy measurements in both study groups.

Variable	Group	Examination I (before)		Examination II (after)		Difference	Difference significance		Confidence level
		M	SD	M	SD		T	p	−95%	+95%
d2.%B (errors)	2	10.70	11.09	8.71	10.33	−1.99	0.741	0.471	−7.74	3.77
	1	9.01	10.89	6.25	7.01	2.76	2.107	0.046	0.05	5.47
d2. ZK (ability to concentrate)	2	99.06	44.59	105.94	47.66	6.88	−0.985	0.340	−8.00	21.75
	1	107.42	46.69	117.88	35.71	−10.46	−2.078	0.049	−20.87	−0.05
PANSS-POSITIVE	2	9.06	2.04	7.50	2.23	−1.56	10.719	<0.001	−1.86	−1.25
	1	9.28	2.01	8.24	2.01	1.04	6.186	<0.001	0.69	1.39
PANSS-NEGATIVE	2	13.94	3.92	11.83	4.48	−2.11	8.304	<0.001	−2.65	−1.57
	1	15.16	3.51	14.08	4.47	1.08	2.596	0.016	0.22	1.94
PANSS-GENERAL	2	24.83	3.35	22.61	3.71	−2.22	10.736	<0.001	−2.66	−1.79
	1	27.44	3.31	25.88	4.20	1.56	2.742	0.011	0.39	2.73
PANSS-TOTAL	2	47.83	8.49	41.94	9.64	−5.89	11.834	<0.001	−6.94	−4.84
	1	51.92	7.22	48.20	9.36	3.72	3.375	0.003	1.45	6.00
BDNF	2	44.78	10.69	55.50	10.76	10.72	−6.185	<0.001	7.06	14.38
	1	50.16	11.38	52.96	10.70	−2.80	−1.575	0.128	−6.47	0.87
BCIS A (self-reflectiveness)	2	22.72	4.80	25.72	3.14	3.00	−3.170	0.006	−5.00	−1.00
	1	21.15	4.47	22.12	4.96	−0.96	−0.911	0.371	−3.14	1.21
BCISS A-B (composite index)	2	8.78	5.35	12.22	3.17	3.44	−2.946	0.009	−5.91	−0.98
	1	6.38	4.83	7.35	5.12	−0.96	−1.000	0.327	−2.94	1.02
AIS (illness acceptance)	2	22.67	8.95	26.44	6.46	3.78	−2.547	0.021	0.65	6.91
	1	25.96	8.77	25.00	7.83	0.96	0.557	0.583	−2.60	4.52
GSES (self-efficacy)	2	23.78	5.43	27.61	5.09	3.83	−3.239	0.005	1.34	6.33
	1	30.15	5.76	28.69	6.16	1.46	1.000	0.327	−1.55	4.47
QEEG C-z theta/beta (attention factor of the central area)	2	1.92	0.57	2.29	0.88	0.37	−2.632	0.018	0.07	0.67
	1	2.35	0.94	2.49	0.82	−0.14	−1.453	0.159	−0.34	0.06
QEEG F-z theta/SMR (concentration factor of the central area)	2	2.07	0.64	2.37	0.80	0.30	−2.358	0.031	0.03	0.57
	1	2.49	1.00	2.60	0.83	−0.10	−1.013	0.321	−0.31	0.10
F-z N1 (amplitude of the first negative component of the central area)	2	−3.95	2.53	−5.36	1.93	−1.41	2.588	0.020	−2.57	−0.26
	1	−5.29	3.93	−6.58	3.44	1.30	1.263	0.219	−0.83	3.42
C-z P2 (latency—delay of the second positive component of the central area)	2	208.82	14.81	196.06	18.27	−12.77	2.643	0.018	−23.01	−2.52
	1	203.92	23.94	205.04	21.70	−1.13	−0.185	0.855	−13.68	11.43

M: mean value; SD: standard deviation; T: Student's t-test; p: level of significance.