| Model Specifications | χ2 | df | Δχ2 | CFI | NNFI | RMSEA |
| Null model (M0) | 3828.59 | 105 | - | - | - | - |
| Baseline 3-factor model (M1) | 375.46 | 87 | - | 0.92 | 0.91 | 0.09 |
| Job autonomy and Personal initiative combined (M2) | 832.96 | 89 | 457.49** | 0.80 | 0.76 | 0.15 |
| Personal initiative and Psychological well-being combined (M3) | 909.42 | 85 | 533.96** | 0.78 | 0.73 | 0.16 |
| Three constructs represent a single dimension (M4) | 1208.70 | 90 | 833.23** | 0.70 | 0.65 | 0.18 |