Table 2.

Measurement Invariance in the total sample.

Model	CFI	RMSEA	SRMR	Model comparison	ΔCFI	ΔRMSEA	ΔSRMR
Model 1: across sex
Configural	0.983	0.089	0.015
Metric	0.982	0.077	0.019	Configural vs. metric	0.001	0.012	0.004
Scalar	0.981	0.069	0.020	Metric vs. scalar	0.001	0.008	0.001
Model 2: across education
Configural	0.978	0.103	0.029
Metric	0.976	0.091	0.033	Configural vs. metric	0.002	0.012	0.004
Scalar	0.976	0.077	0.033	Metric vs. scalar	<0.001	0.014	<0.001
Model 3: across age
Configural	0.975	0.078	0.023
Metric	0.975	0.062	0.024	Configural vs. metric	<0.001	0.016	0.001
Scalar	0.972	0.056	0.024	Metric vs. scalar	0.003	0.006	<0.001

CFI, comparative fit index; RMSEA, root mean square error of approximation; SRMR, standardized root mean square residual.