Table 3.

Model fit statistics for invariance testing for seven- and six-item models (n = 2590)

Model	X 2	∆X 2	df	∆df	(∆X 2/∆df)	RMSEA	∆RMSEA	CFI	∆CFI
Seven-item model
Configural	228.63		78			.027		.970
Metric	277.28	48.65a	103	25	1.95	.026	−.003	.965	−.005
Structural	308.76	31.48a	118	15	2.10	.025	−.001	.962	−.003
Six-item model
Configural	106.76		48			.022		.986
Metric	130.79	24.03	68	20	1.20	.019	−.003	.985	−.001
Structural	166.49	35.70a	83	15	2.38	.020	.001	.980	−.005

^asignificant at 0.05

Bolded values indicate invariance