Table 3.
Validation results (n = 25; randomly selected).
| Category | Significance of model | Explained distribution | Model’s goodness of fit | Prediction results | |||
|---|---|---|---|---|---|---|---|
| χ 2 | P | Cox & Snell R Square | ×2 Log likelihood | Hosmer and Lemeshow Test (Sig.) | Correctly predicted % | ||
| Input all PCs | FFR | 19.566 | 0.003 *** |
0.543 | 14.084a | 0.719 | 84.0 |
| ISO + key literature | 8.286 | 0.141 | 0.282 | 25.365a | 0.466 | 80.0 | |
| ISO | 7.555 | 0.183 | 0.261 | 26.096a | 0.205 | 72.0 | |
| Input top 5 measurements from PCA† | FFR | 16.840 | 0.005 *** |
0.490 | 16.811a | 0.830 | 84.0 |
| ISO + key literature | 8.573 | 0.127 | 0.290 | 25.078a | 0.893 | 68.0 | |
| ISO | 8.573 | 0.127 | 0.290 | 25.078a | 0.893 | 68.0 | |
*** P < 0.001.
†To make the condition equivalent (5 measurements for each FFR-specific and traditional anthropometry), the FFR-specific face anthropometry’s PC 6 was not included in the analysis.