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Table 2 Mean score of facial expressions

From: Effect of facial expressions on student’s comprehension recognition in virtual educational environments

Facial expressions

Mean score

Eye shrink

3.670

Eye enlarge

4.310

Mouth widen

3.590

Lips curled

3.330

Eyebrow raised

4.040

Eyebrow lowered

3.300

Forehead wrinkle

3.390