Table 1.
Comparison of nested linear mixed effects models (LMMs) fitted to subjective attractiveness ratings in Experiment 1.
| Model comparison |
||||||
|---|---|---|---|---|---|---|
| Model | df | Formula | AIC | χ2 | df | p |
| Natural faces | ||||||
| nat 0 | 4 | Attractiveness ∼ 1 + RE | 2956 | |||
| nat 1 | 7 | Attractiveness ∼ 1 + GI + RE | 2962 | 0.05 | 3 | 0.997 |
| nat 2 | 19 | Attractiveness ∼ 1 + EGI + RE | 2979 | 6.54 | 12 | 0.886 |
| Morphed faces | ||||||
| mor0 | 4 | Attractiveness ∼ 1 + RE | 2756 | |||
| mor1 | 7 | Attractiveness ∼ 1 + GI + RE | 2748 | 14.1 | 3 | 0.003 |
| mor2 | 19 | Attractiveness ∼ 1 + EGI + RE | 2755 | 17.5 | 12 | 0.133 |
Attractiveness, individual subjective attractiveness judgments; Formula, model definition for the lme4 software package; RE, random effects structure [(1| Participant) + (1| Stimulus)]; GI = [Participant Sex × Face Gender]; EGI = [Participant Sex × Participant Eye Color × Face Gender × Face Eye Color].