. Author manuscript; available in PMC: 2010 Aug 23.

Published in final edited form as: Qual Life Res. 2009 Jun 14;18(6):709–718. doi: 10.1007/s11136-009-9495-x

Table 2.

Multiple group CFA results: tests of measurement equivalence for SF36 across participants with and without diabetes and/or hypertension

Model	χ² statistic	df	CFI	RMSEA	Model comparisons

					Models compared^a	χ² difference	df	P value
1. All factor loadings constrained equal across groups	225.78	91	0.965	0.072
2. All factor loadings free to vary across groups	181.097	64	0.970	0.080	1 vs. 2	44.683	27	0.0176
3. All factor loadings differ in the “neither condition” group, but equal in the other 3 groups	198.87	82	0.970	0.070	1 vs. 3	26.91	9	0.0014
					2 vs. 3	17.773	18	0.4707
4. BP loadings differ in the “neither condition” group, but equal in the other 3 groups	214.067	90	0.968	0.069	1 vs. 4	11.713	1	0.0006
					3 vs. 4	15.197	8	0.0454
5. GH loadings differ in the “neither condition” group, but equal in the other 3 groups	217.837	89	0.967	0.071	1 vs. 5	7.943	2	0.0188
					3 vs. 5	18.967	7	0.0083
6. BP and GH loadings differ in the “neither” group, but equal in the other 3 groups	207.168	88	0.969	0.069	1 vs. 6	18.612	3	0.0003
					3 vs. 6	8.298	6	0.2171

Each model was compared with the null model (model 1) and the best previous model