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. 2020 Oct 14;10:17216. doi: 10.1038/s41598-020-73187-w

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.