Table 3.

Mean (standard deviation) individual item scores in auditory hallucination rating scale 2

Items	Baseline	Week 1	Week 2	Week 4	Week 16	Friedman's test
						χ2	Df	P
Frequency	3.2 (0.9)	2.6 (1.3)	2.2 (1.3)	2.3 (1.2)	2.0 (2.2)	24.43	6	<0.001
Duration	2.7 (1.0)	2.2 (1.2)	1.9 (1.2)	1.9 (1.1)	2.5 (1.6)	18.63	6	<0.005
Location	2.9 (1.3)	2.7 (1.5)	2.5 (1.6)	1.7 (0.9)	1.4 (0.9)	3.74	6	0.71
Loudness	2.1 (0.8)	1.7 (1.0)	1.6 (1.0)	2.7 (1.4)	2.3 (1.5)	8.50	6	0.20
Beliefs about origin of voices	3.0 (1.1)	2.7 (1.3)	2.6 (1.4)	1.3 (1.5)	1.1 (1.4)	7.15	6	0.31
Amount of negative content of voices	2.1 (1.3)	1.7 (1.4)	1.4 (1.4)	1.4 (1.5)	1.1 (1.1)	16.54	6	0.01
Degree of negative content	2.3 (1.4)	1.9 (1.5)	1.5 (1.4)	2.2 (1.4)	2.0 (1.4)	17.74	6	0.01
Amount of distress	3.3 (1.6)	2.6 (1.3)	2.2 (1.4)	2.1 (1.4)	1.8 (1.4)	30.87	6	0.001
Intensity of distress	3.1 (1.2)	2.6 (1.3)	2.2 (1.3)	1.9 (1.1)	1.9 (1.1)	30.02	6	0.001
Disruption	2.1 (0.7)	2.0 (1.0)	1.9 (1.0)	2.9 (1.4)	1.8 (1.1)	1.01	6	0.99
Control	3.7 (0.7)	3.3 (1.2)	2.9 (1.5)	2.9 (1.4)	2.7 (1.5)	15.28	6	<0.02