Table 2.
Linear mixed effects model table of model evidence displaying the effects of face-looking on α values with the Social condition as the reference event.
| Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | |
|---|---|---|---|---|---|
| Fixed effects | |||||
| Between-person | |||||
| Intercept | 0.834*** (0.006) | 0.835*** (0.006) | 0.839*** (0.005) | 0.850*** (0.003) | 0.848*** (0.003) |
| Avg Age | − 0.001* (0.001) | − 0.001* (0.001) | − 0.001* (0.001) | ||
| Face-looking%, person Avg | 0.117*** (0.035) | ||||
| Within-person, between-visits | |||||
| Age | 0.003*** (0.000) | 0.001** (0.000) | 0.001** (0.000) | 0.001** (0.000) | |
| Face-looking (%), visit-Avg | 0.087* (0.037) | ||||
| Within-visit, between-movies | |||||
| Pixelated (dummy) | − 0.022*** (0.004) | − 0.017*** (0.004) | |||
| Face-looking (%), movie Avg | 0.029* (0.012) | ||||
| Within-movie, between-segments | |||||
| Face-looking (%), segment-Avg | − 0.027* (0.013) | ||||
| Random effects | |||||
| Between-person | |||||
| Intercept | 0.001 | 0.001 | 0.000 | 0.000 | 0.000 |
| Age | 0.000 | 0.000 | 0.000 | 0.000 | |
| Within-person, between-visits | |||||
| Intercept | 0.002 | 0.002 | 0.001 | 0.001 | 0.001 |
| Pixelated | 0.001 | 0.001 | |||
| Within-visit, between-movie | |||||
| Intercept | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Residual | 0.007 | 0.007 | 0.007 | 0.007 | 0.007 |
| Model fit indices | |||||
| AIC | − 13,944.2 | − 13,998.9 | − 14,197.6 | − 14,229.7 | − 14,248.3 |
| BIC | − 13,910.0 | − 13,944.1 | − 14,115.4 | − 14,126.9 | − 14,118.1 |
| Log likelihood | 6977.1 | 7007.5 | 7110.8 | 7129.9 | 7143.2 |
P < 0.001.
Coefficients are presented with standard errors in parentheses, with significant effects bolded for emphasis. Model 5, which includes a Face-looking effect is the final best fitting model.