Table 4: Comparison of the models of factor structures of the EPDS items.
| Model |
χ2/df
|
∆χ2 (df) |
CFI |
RMSEA |
AIC |
| Single-factor |
245.352/35 = 7.01 |
Ref |
0.822 |
0.126 |
305.352 |
| 2-factor |
167.149/34 = 4.92 |
78.203 (1) *** |
0.887 |
0.102 |
229.149 |
| 3-factor |
127.049/32 = 3.97 |
40.1 (2) *** |
0.919 |
0.089 |
193.049 |
| 3-factor Kubota |
76.837/17 = 4.52 |
50.212 (15) *** |
0.940 |
0.097 |
130.837 |
| 3-factor Kubota with a second-order factor#
|
76.837/17 = 4.52 |
0.000 (0) |
0.940 |
0.097 |
130.837 |
| Bifactor model with 3-factor Kubota |
9.637/9 = 1.07
|
67.2 (8) *** |
0.999 |
0.014 |
79.637 |
#, inappropriate solution; CFI, Comparative Fit Index; RMSEA, Root Mean Square Error of Approximation; AIC, Akaike Information Criteria. The best indices are in bold.