Table 2 Fit statistics for the study models (N = 1053).
Model | χ2 (df) | χ2/df | IFI | TLI | CFI | RMSEA | SRMR | Δχ2 (df) | Model comparison |
|---|---|---|---|---|---|---|---|---|---|
M1a: SOC-13 One-factor model | 1294.143(65)*** | 19.910 | .697 | .635 | .696 | .134 | .0954 | ||
M1b: SOC-13 Two-factor model (Comprehensibility + Meaningfulness, and Manageability) | 1277.233(64)*** | 19.957 | .701 | .634 | .700 | .134 | .0951 | 16.91(1)*** | M1b vs M1a |
M1c: SOC-13 Two-factor model (Comprehensibility, and Manageability + Meaningfulness) | 1233.748(64)*** | 19.277 | .712 | .648 | .711 | .132 | .0958 | 43.48(0)*** | M1c vs M1b |
M1d: SOC-13 Two-factor model (Comprehensibility + Manageability, and Meaningfulness) | 1163.624(64)*** | 18.182 | .729 | .669 | .728 | .128 | .0907 | 70.12(0)*** | M1d vs M1c |
M1e: SOC-13 Three-factor model (Comprehensibility, Manageability, Meaningfulness) | 1096.618(62)*** | 17.687 | .745 | .678 | .744 | .126 | .0897 | 67.006(2)*** | M1e vs M1d |
M2a. SOC-9 One-factor model (9-item version) | 523.762(27)*** | 19.399 | .828 | .771 | .828 | .132 | .0709 | 572.85(35)*** | M2a vs M1d |
M2b. SOC-9 Two-factor model (Co + Ma and Me) | 425.563(26)*** | 16.368 | .862 | .808 | .862 | .121 | .0630 | 98.19(1)*** | M2b vs M2a |
M2c. SOC-9 Three-factor model | 337.312(24)*** | 14.055 | .892 | .837 | .891 | .111 | .0578 | 88.251(2)*** | M2c vs M2b |
M3. SOC-9-PL Modified three-factor model | 124.768(22)*** | 5.671 | .965 | .942 | .964 | .067 | .0366 | 212.544(2)*** | M3 vs M2c |
