Table 1.

Overview of facial signal reliability scores.

Signal	agr	k	SeM	Mabs (ms)
Eyebrow frowns	98%	0.90	84.97	167.58
Eyebrow raises	97%	0.97	46.07	120.44
Eyebrow frown raises	100%	0.83	97	132
Eyebrow unilateral raises	99%	0.88	13.49	46.57
Eye widenings	99%	0.83	46.30	129.16
Squints	99%	0.91	29.69	73
Blinks	92%	0.97	9.85	30.65
Gaze shifts	98%	0.99	36.89	112
Nose wrinkles	100%	0.81	24	40
Pressed lips	99%	0.86	34	380
Mouth corners down	97%	0.80	31	110
Smiles	97%	0.96	201.41	480.67

Note. agr = raw agreement [70,71], k = Cohen’s kappa [72], SeM = standard error of measurement, Mabs = mean absolute difference (ms).