Measurement equivalence of the SF-36 in the canadian multicentre osteoporosis study

Table 3 Fit statistics for initial and modified configural invariance model for the SF-36

Study group	Model	SB χ²	RMSEA (90% CI)	SRMR	CFI	NNFI
Female, Caucasian	Initial	1584.95*	0.12 (0.11, 0.12)	0.06	0.96	0.94
	Modified	976.36*	0.10 (0.09, 0.10)	0.05	0.97	0.96
Male, Caucasian	Initial	718.18*	0.12 (0.11, 0.13)	0.07	0.95	0.92
	Modified	404.36*	0.10 (0.09, 0.10)	0.05	0.97	0.95
Female, non-Caucasian	Initial	81.58*	0.11 (0.09, 0.14)	0.06	0.96	0.95
	Modified	45.64*	0.08 (0.06, 0.11)	0.04	0.98	0.97
Male, non-Caucasian	Initial	68.23*	0.11 (0.09, 0.14)	0.07	0.95	0.93
	Modified	33.35*	0.07 (0.04, 0.11)	0.05	0.98	0.97

SB = Satorra-Bentler; RMSEA = root mean square error of approximate; CI = confidence interval; CFI = comparative fit index; NNFI = non-normed fit index; Initial model, which is defined in Figure 1, has 19 degrees of freedom and the modified model has 16 degrees of freedom; * denotes a SB χ² statistic that is statistically significant at α = .05

ISSN: 1477-7525