Table 1.
Fit indices for the confirmatory factor analytic models of IUI-A and IUI-B.
| Model | SBχ2 (df) | NNFI | CFI | SRMR | RMSEA (95% CI) |
|---|---|---|---|---|---|
| IUI-A, Single Factor | 947.36∗∗ (92) | 0.874 | 0.890 | 0.067 | 0.094 (0.089–0.100) |
| IUI-A, Two Factor | 922.28∗∗ (89) | 0.873 | 0.893 | 0.063 | 0.095 (0.089–0.100) |
| IUI-A, Three Factor | 865.28∗∗ (87) | 0.879 | 0.900 | 0.062 | 0.093 (0.087–0.098) |
| IUI-A, Two Factor, 5-item Latent Variable | 858.45∗∗ (89) | 0.883 | 0.901 | 0.068 | 0.091 (0.085–0.096) |
| IUI-A, Single Factor, 10-items | 338.14∗∗ (35) | 0.932 | 0.947 | 0.064 | 0.091 (0.082–0.100) |
| IUI-B, Six Factor | 1405.24∗∗ (390) | 0.932 | 0.939 | 0.043 | 0.051 (0.043–0.053) |
| IUI-B, Three Factor | 948.18∗∗ (167) | 0.921 | 0.931 | 0.050 | 0.068 (0.063–0.072) |
| IUI-B, Second Order Model | 1520.03∗∗ (399) | 0.927 | 0.933 | 0.069 | 0.053 (0.050–0.055) |
| IUI-B, Bifactor Model | 1331.22∗∗ (375) | 0.934 | 0.943 | 0.041 | 0.050 (0.047–0.053) |
NNFI, robust version of non-normed fit index; CFI, robust version of comparative fit index; RMSEA, robust version of root mean square error of approximation; SRMR, standardized root mean square residual; IUI-A, intolerance of uncertainty index part A; IUI-B, intolerance of uncertainty index part B; ∗∗p < 0.001.