Table 5.

Global mental health scale item parameters (graded response model) and item information

	a	b1	b2	b3	b4	Information
Global02	2.41	−2.45	−1.32	−0.19	1.07	1.50
Global04	3.67	−2.31	−1.26	−0.33	0.67	2.99
Global05	2.98	−1.78	−0.90	−0.01	1.07	2.21
Global10	1.89	−2.82	−1.51	−0.25	0.99	0.98

Item 1: Global02, In general, would you say your quality of life is…; Item 2: Global04, In general, how would you rate your mental health?; Item 3: Global05, In general, how would you rate your satisfaction with social activities and relationships?; Item 4: Global10, How often have you been bothered by emotional problems?