Motivational determinants of physical activity in disadvantaged populations with (pre)diabetes: a cross-cultural comparison

Table 2 Model fit of motivational constructs per country and measurement invariance across the three settings

	χ2	df	n	CFI	TLI	RMSEA	90% CI RMSEA	SRMR	Δχ2	p-value	ΔCFI	ΔRMSEA
Identified Regulation
Uganda	.719	1.000	712	1.000	1.000	.000	.000–.126	.006
South Africa	.110	1.00	566	1.000	1.000	.000	.000–.083	.002
Sweden	1.129	1.000	147	1.000	1.000	.000	.000–.249	.018
Configural	1.527	3.000	1425	1.000	1.000	.000	.000–.060	.004
Metric	17.315	9.000	1425	1.000	1.000	.000	.000–.071	.033	15.790	.015	.000	.000
Partial scalar item 4^a	21.094	13.000	1425	1.000	1.000	.000	.000–.058	.034	3.571	.467	.000	.000
Social Support
Uganda	3.024	2.000	712	1.000	1.000	.008	.000–.091	.009
South Africa	7.049	2.000	566	.997	1.000	.052	.000–.139	.014
Sweden	3.969	2.000	147	.985	1.000	.078	.000–.204	.035
Configural	26.405	12.000	1425	.998	1.000	.044	.000–.093	.012
Metric	14.555	6.000	1425	.995	1.000	.045	.004–.076	.026	11.884	.065	−.003	.001
Partial scalar item 3^a	42.885	16.000	1425	.990	1.000	.057	.033–.081	.032	16.576	.002	−.005	.012
Barrier Self-efficacy
Uganda	2.199	2.000	712	1.000	1.000	.000	.000–.081	.011
South Africa	14.233	2.000	566	.982	1.000	.100	.044–.166	.028
Sweden	2.429	2.000	147	1.000	1.000	.000	.000–.183	.039
Configural	18.358	6.000	1425	.992	1.000	.060	.014–.103	.017
Metric	39.333	12.000	1425	.982	1.000	.065	.038–.094	.043	20.953	.002	−.010	.005
Scalar	54.349	18.000	1425	.975	1.000	.062	.040–.085	.047	14.987	.020	−.007	−.003

Legend: df degrees of freedom, CFI comparative fit index, TLI Tucker-Lewis index, RMSEA root-mean-square error of approximation, RMSEA 90% CI 90% confidence interval for RMSEA, SRMR standardized root mean square residual, Δχ2 difference in χ2, ΔCFI difference in CFI, ΔRMSEA difference in RMSEA
^a indicates the items of which the intercepts were freely estimated

ISSN: 1471-2458