Conditional likelihood ratio test of overall model fit and global DIF.
SE
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.The conditional outfits and infits disclosed misfit of Item 1 (Outfit = 1.350, SE = 0.103, p<0.001; Infit = 1.319, SE = 0.100, p = 0.001) (Before considering removing Item 1, it was investigated whether the departures from the RM would constitute LD and/or DIF. The analysis of the residual correlations (