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. 2021 Oct 8;18(19):10555. doi: 10.3390/ijerph181910555

Table 4.

Comparisons of participants’ accuracies to recognize senders’ facially expressed emotions between no mask and mask conditions for participant nationality groups.

Emotion 1 Korean (n = 240) American (n = 273)
No Mask Mask No Mask Mask
Anger (SD) 1.21 (0.70) 1.08 (0.72) 1.49 (0.63) 1.43 (0.66)
t(239) = −2.13, p < 0.05 t(272) = −1.29, p = 0.19
Disgust (SD) 1.19 (0.69) 0.75 (0.65) 1.64 (0.54) 0.91 (0.69)
t(239) = −7.80, p < 0.001 t(272) = −15.05, p < 0.001
Fear (SD) 0.39 (0.61) 0.11 (0.32) 1.29 (0.63) 0.74 (0.64)
t(239) = −7.11, p < 0.001 t(272) = −11.56, p < 0.001
Sadness (SD) 1.30 (0.64) 1.11 (0.68) 1.76 (0.47) 1.28 (0.71)
t(239) = −3.63, p < 0.001 t(272) = −10.97, p < 0.001
Happiness (SD) 1.92 (0.26) 1.77 (0.46) 1.93 (0.24) 1.33 (0.62)
t(239) = −5.15, p < 0.001 t(272) = −15.67, p < 0.001
Surprise (SD) 1.85 (0.35) 1.77 (0.45) 1.84 (0.36) 1.71 (0.50)
t(239) = −2.26, p < 0.05 t(272) = −4.38, p < 0.001

1 Dependent variable = mean of correct recognitions of senders’ facially expressed emotions.