TABLE 3.

Summary of testing of invariance of the structural model across individuals with diabetes (N = 212) and individuals with an amputation (N = 227).

Invariance model	(2	df	RMSEA	CFI	TLI	AIC
Unconstrained model	75.12	22	0.074	0.965	0.933	143.13
1. Measurement weights	85.46	25	0.074	0.960	0.933	147.46
2. Structural weights	94.34	30	0.070	0.958	0.941	146.34
3. Structural covariance	97.43	33	0.067	0.958	0.946	143.43
4. Structural residuals	97.43	35	0.073	0.946*	0.935	158.89
5. Measurement residual	127.45	39	0.072	0.942	0.937	161.45

RMSEA, root mean squared error of approximation; CFI, comparative fit index; TLI, Tucker-Lewis index. *ΔCFI > 0.01.