Table 7.

Information table about items’ properties.

Classic test theory		Rasch model
Item	Item-test correlation	Item	MNSQ	Measure
Health-own	0.69	Health-own	0.89	−0.11
Finances	0.69	Finances	0.89	−0.42
Work	0.64	Work	0.99	0
Family	0.57	Family	1.07	1.1
Health-relatives	0.57	Health-relatives	1.16	−0.57
Alpha’s Cronbach	0.62	Mean	1	0
Omega’s coefficient	0.63	S.D.	0.11	0.59
Cattell’s criterion	One factor	Person information
		Mean	1.00	−0.40
Origin	The Healthy Aging Longitudinal Study in Taiwan (HALST)	Median	1.00	−0.45
		Min	0.60	−2.88
		Max	1.59	2.92
		SD	0.22	1.69