The Brief Symptom Inventory and the Outcome Questionnaire-45 in the Assessment of the Outcome Quality of Mental Health Interventions

Table 2

Descriptive statistics and reliability (Chronbach’s alpha) of the global scales.

	OQ Total Score		GSI
	Inpatients ()	Outpatients ()	Inpatients ()	Outpatients ()
M (SD)	78.4 (28.9)	72.0 (19.4)	1.46 (0.79)	1.06 (0.53)
Min	0	33	0	0.26
Percentiles
5	31	40	0.25	0.34
10	38	47	0.41	0.45
25	58	60	0.85	0.66
50	79	71	1.40	0.97
75	99	85	2.02	1.39
90	117	95	2.56	1.76
95	126	104	2.85	2.02
Max	159	143	3.79	2.78
	0.95	0.91	0.97	0.95

Note: Calculations of are based on complete case analysis. OQ-45 from sample 1: . OQ-45 from sample 3: . BSI from sample 2: . BSI from sample 3: .