Table 2. Conditional likelihood ratio test of overall model fit and global DIF.

	Sample 1				Sample 2
Model	Homogeneity	DIF by sex	DIF by education	DIF by employment status	Homogeneity	DIF by education	DIF by employment status
RM	χ2(15) = 69.6, p<0.001	χ2(15) = 15.8, p = 0.392	χ2(15) = 13.6, p = 0.554	χ2(15) = 31.2, p = 0.008	χ2(15) = 25.1, p = 0.049	χ2(15) = 19.3, p = 0.200	χ2(15) = 12.8, p = 0.621
GLLRM	χ2(38) = 52.7, p = 0.057	χ2(38) = 50.4, p = 0.086	χ2(38) = 39.5, p = 0.397	χ2(30) = 43.9, p = 0.048	χ2(25) = 22.2, p = 0.625	χ2(25) = 10.3, p = 0.996	χ2(25) = 16.4, p = 0.903

Note. The subgroups were defined according to lower and higher scores (i.e. homogeneity) to evaluate overall model fit; and according to sex (Men; Women), education (Up to high school; TAFE or University) and employment status (Not employed; Employed) to evaluate overall DIF.