Evaluation of the late life disability instrument in the lifestyle interventions and independence for elders pilot (LIFE-P) study

Table 3 Confirmatory Factor Analyses for Limitation Domain in Late Life Disability Questionnaire from LIFE-P

16 items from Jette et al.
Time	No. of Factors	Chi-Square	df	p-value	Goodness of Fit Index	CFI ^a	Non-normed Index	NFI ^b	RMSEA ^c
Baseline	1	512.9	104	< .0001	0.8484	0.8302	0.8313	0.7971	0.0991
	2	321.7	89	< .0001	0.9008	0.9034	0.9046	0.8727	0.0808
Month 6	1	438.3	104	< .0001	0.8499	0.8621	0.8630	0.8278	0.0926
	2	237.4	89	< .0001	0.9205	0.9388	0.9396	0.9067	0.0667
Month 12	1	403.7	104	< .0001	0.8727	0.8832	0.8839	0.8497	0.0872
	2	282.4	89	< .0001	0.9103	0.9246	0.9255	0.8949	0.0757
Original 8 items from McAuley et al.
Time	No. of Factors	Chi-Square	df	p-value	Goodness of Fit Index	CFI	Non-normed Index	NFI	RMSEA
Baseline	1	61.9	20	< .0001	0.9620	0.9534	0.9538	0.9333	0.0710
	2	19.2	13	0.1182	0.9890	0.9932	0.9933	0.9794	0.0337
Month 6	1	140.3	20	< .0001	0.9042	0.8832	0.8841	0.8674	0.1251
	2	40.5	13	0.0001	0.9741	0.9733	0.9736	0.9617	0.0743
Month 12	1	115.5	20	< .0001	0.9219	0.9109	0.9116	0.8950	0.1118
	2	35.8	13	0.0006	0.9777	0.9788	0.9791	0.9675	0.0677

ISSN: 1477-7525