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

BMC Psychology

Table 7 Measurement invariance for the total sample

Model	χ²	df	CFI	AIC	BIC	RMSEA	Δχ²	p value	ΔCFI	ΔRMSEA
First-order CFA
Gender
Configural invariance	680.89	326	.939	30,557	31,162	.057	–	–	–	–
Metric invariance	694.84	342	.939	30,539	31,071	.055	13.946	.603	.000	.002
Scalar invariance	713.29	358	.939	30,526	30,986	.054	18.452	.298	.000	.001
Strict invariance	788.93	378	.929	30,561	30,931	.057	75.634	< .001	.010	.003
Curriculum phase
Configural invariance	670.77	326	.942	30,645	31,249	.056	–	–	–	–
Metric invariance	690.73	342	.942	30,633	31,165	.055	19.954	.222	.001	.001
Scalar invariance	721.03	358	.939	30,631	31,091	.055	30.303	.017	.002	.000
Strict invariance	748.86	378	.938	30,619	30,989	.054	27.829	.114	.001	.001
Second-order CFA
Gender
Configural invariance	781.37	330	.922	30,650	31,236	.064	–	–	–	–
Metric invariance	796.78	349	.923	30,627	31,128	.062	15.414	.696	.001	.002
Scalar invariance	815.27	364	.922	30,616	31,049	.061	18.483	.238	.001	.001
Strict invariance	891.03	384	.913	30,651	30,994	.063	75.766	< .001	.010	.002
Curriculum phase
Configural invariance	775.98	330	.925	30,742	31,328	.063	–	–	–	–
Metric invariance	795.52	349	.925	30,724	31,224	.062	19.534	.423	.000	.002
Scalar invariance	826.49	364	.922	30,725	31,158	.061	30.968	.009	.003	.000
Strict invariance	853.06	384	.921	30,711	31,054	.060	26.571	.148	.001	.001

ISSN: 2050-7283