TABLE 2.
Comparison of the goodness-of-fit statistics. Lower AIC or BIC values indicate better model performance
| Model | AIC | BIC | log likelihood | Chi-square* | DF* | P value* |
|---|---|---|---|---|---|---|
| One-factor (unidimensional) model | 111805 | 112677 | −55756 | |||
| Five correlated factors model | 110810 | 111741 | −55249 | 1015 | 10 | <.0001 |
| Bi-factor model (no correlation between factors) | 109009 | 110197 | −54305 | 1887 | 43 | <.0001 |
| Bi-factor model with correlated domain-specific factors | 108290 | 109538 | −53935 | 739 | 10 | <.0001 |
*
For the comparison to the model in the prior row.
Abbreviations: AIC, Akaike information criterion; BIC, Bayesian information criterion; DF, degree of freedom.