Table 1.
Fit indices of all the competitive models
| χ2 | df | CFI | TLI | RMSEA | 95% CI for RMSEA | SRMR | AIC | BIC | |
|---|---|---|---|---|---|---|---|---|---|
| Model 1 | 24,866.7 | 54 | .919 | .900 | .124 | [.123, .125] | .360 | 24,698.7 | 24,267.7 |
| Model 2 | 11,977.8 | 53 | .961 | .950 | .087 | [.086, .088] | .207 | 11,871.9 | 11,439.2 |
| Model 3 | 11,794.1 | 53 | .961 | .949 | .086 | [.085, .087] | .202 | 11,598.1 | 11,155.4 |
| Model 4 | 158.0 | 51 | 1.000 | 1.000 | .008 | [.007, .010] | .007 | 56.8 | −368.0 |
| Model 5 | 84.1 | 42 | 1.000 | 1.000 | .006 | [.004, .007] | .003 | 1.2 | −347.6 |
Note. CFI = comparative fit index; TLI = Tucker–Lewis index; RMSEA = root mean square error of approximation; CI = confidence interval; df = degrees of freedom; SRMR = standardized root mean square residual; Model 1 = unidimensional model; Model 2 = 2-factor correlated model (FR/SO and FA); Model 3 = 2-factor correlated model (FA/SO and FR); Model 4 = 3-factor correlated model; Model 5 = bifactor CFA model; AIC = Akaike information criterion; BIC = Bayesian information criterion.