Applicability and validation of the Reaction to Tests Scale (RTT) in a sample of Portuguese medical students

BMC Psychology

Table 6 Measurement invariance for the CFA sample

Model	χ²	df	CFI	AIC	BIC	RMSEA	Δχ²	p value	ΔCFI	ΔRMSEA
First-order CFA
Gender
Configural invariance	583.19	326	.918	15,354	15,866	.069	–	–	–	–
Metric invariance	593.96	342	.920	15,333	15,783	.066	10.769	.820	.002	.002
Scalar invariance	603.49	358	.922	15,310	15,700	.064	9.522	.890	.002	.002
Strict invariance	654.82	378	.912	15,322	15,635	.066	51.333	< .001	.010	.002
Curriculum phase
Configural invariance	583.67	326	.920	15,380	15,892	.069	–	–	–	–
Metric invariance	599.97	342	.920	15,365	15,815	.067	16.308	.430	.0	.002
Scalar invariance	631.78	358	.915	15,364	15,754	.067	31.741	.011	.005	0
Strict invariance	657.37	378	.913	15,350	15,663	.066	25.657	.177	.002	.001
Second-order CFA
Gender
Configural invariance	642.67	330	.901	15,406	15,902	.075	–	–	–	–
Metric invariance	659.59	349	.902	15,385	15,808	.073	16.92	.5952	.001	.002
Scalar invariance	669.59	364	.903	15,364	15,731	.071	9.702	.838	.002	.002
Strict invariance	719.34	384	.894	15,374	15,664	.072	50.04	< .001	.010	.001
Curriculum phase
Configural invariance	646.2	330	.901	15,435	15,931	.076	–	–	–	–
Metric invariance	662.49	349	.902	15,413	15,837	.073	16.292	.637	.001	.002
Scalar invariance	694.79	364	.897	15,416	15,782	.074	32.302	.0058	.005	0
Strict invariance	718.73	384	.896	15,400	15,690	.072	23.936	.245	.001	.002

ISSN: 2050-7283