Validation of the German Normalisation Process Theory Measure G-NoMAD: translation, adaptation, and pilot testing

Table 4 Results of the measurement invariance analysis

Model	χ²	df	CFI	TLI	RMSEA	SRMR	∆ χ²	∆ CFI	Model comparison	Decision
M1: Configural invariance	977.413	328	0.975	0.971	0.086	0.075	–	–	–	Accept
M2: Metric invariance	1363.908	344	0.960	0.956	0.105	0.105	386.495	0.015	M1	Reject
M2a: Partial metric invariance^a	1163.615	342	0.968	0.964	0.095	0.095	186.202	0.007	M1	Accept
M3: Scalar invariance	1491.756	398	0.957	0.959	0.101	0.077	328.141	0.011	M2a	Reject
M3a: Partial scalar invariance^b	1429.600	396	0.960	0.961	0.099	0.077	265.985	0.008	M2a	Accept

CFI Comparative Fit Index, TLI Tucker Lewis Index, RMSEA Root Mean Square Error of Approximation, SRMR Standardised Root Mean Square Residual
^aFreed: factor loadings for CA.2 and CA.3
^bFreed: factor loadings for CA.2 and CA.3 and thresholds RM.4|t2 and CO.4|t3

ISSN: 2662-2211