Table 2.
Fit indices for three- and four-factor models of the PDS
| Model | DSM-IV three-factor model | Emotional numbing four-factor model | Emotional numbing four-factor model with modifications |
|---|---|---|---|
| χ 2/df | 4.17 | 3.39 | 2.53 |
| RMSEA (confidence interval) | .10 (.09–.11) | .09 (.08–.10) | .07 (.06–.08) |
| CFI | .87 | .91 | .94 |
Notes: Goodness-of-fit indices were the relative/normed chi-square statistic (χ 2/df; acceptable fit <5), the root mean square error of approximation (RMSEA; close fit <.05, reasonable fit <.08, and mediocre fit <.10), and the comparative fit index (CFI; adequate fit >.90, good fit >.95)