Table 7.
Confirmatory factor analysis model fit
| Two factor solution | One factor solution | ||||
|---|---|---|---|---|---|
| Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | |
| Unconstrained | Constrained | Unconstrained (excluding Nigeria) | Constrained (excluding Nigeria) | Constrained (excluding Nigeria) | |
| X2 | 7594.7 | 9148.1 | 6314.6 | 7438.6 | 13760.2 |
| DF | 387 | 459 | 344 | 407 | 422 |
| AIC | 8008.7 | 9418.1 | 6682.6 | 7680.6 | 13972.2 |
| TLI | 0.77 | 0.77 | 0.79 | 0.79 | 0.62 |
| RMSEA | 0.03 | 0.03 | 0.03 | 0.03 | 0.04 |
| Model comparison | 2 vs 1 | 4 vs 3 | 5 vs 4 | ||
| X2 change | 1553.4 | 1124.0 | 6321.6 | ||
| DF change | 72 | 63 | 15 | ||
| X2 change/DF change | 21.6 | 17.8 | 421.4 | ||
DF = Degrees of freedom.
AIC = Akaike Information Criterion.
TLI = Tucker-Lewis Index.
RMSEA = Root mean Square Error Approximation.