Table 2. Bifactor exploratory structural equation modeling analysis of the Occupational Depression Inventory (ODI) and the Depression subscale of the Depression Anxiety Stress Scales-21 (DASS-21-D).

Item	GF	SF1	SF2	C	I-ECV	S-ECV	ECV
DASS-21-D Item 1	0.812	0.256	0.109	0.736	0.896	0.909	0.726
DASS-21-D Item 2	0.798	0.301a	0.070	0.733	0.869
DASS-21-D Item 3	0.891	0.316a	-0.033	0.895	0.887
DASS-21-D Item 4	0.864	0.252	0.046	0.812	0.919
DASS-21-D Item 5	0.888	0.279	0.028	0.868	0.908
DASS-21-D Item 6	0.925	-0.164	-0.144	0.903	0.948
DASS-21-D Item 7	0.872	-0.203	-0.087	0.810	0.939
ODI Item 1	0.551	0.161	0.657a	0.762	0.398	0.583
ODI Item 2	0.730	0.095	0.427a	0.724	0.736
ODI Item 3	0.577	-0.018	0.594a	0.686	0.485
ODI Item 4	0.509	0.140	0.661a	0.716	0.362
ODI Item 5	0.607	-0.024	0.544a	0.665	0.554
ODI Item 6	0.763	-0.066	0.422a	0.764	0.762
ODI Item 7	0.661	-0.090	0.609a	0.816	0.535
ODI Item 8	0.629	-0.030	0.607a	0.765	0.517
ODI Item 9	0.796	-0.099	0.251	0.706	0.897

Notes. RMSEA = 0.040; CFI = 0.996; TLI = 0.994; SRMR = 0.018; χ² (75) = 115.128. GF: general factor; SF1: specific factor with DASS-21-D items as targets; SF2: specific factor with ODI items as targets; C: communality; ECV: Explained Common Variance; S-ECV: scale-level ECV; I-ECV: item-level ECV.

^a Bifactor loadings ≥ 0.300.