T₀

T₂₈

Mean of the differences

95% confidence interval

t-value

p-value

Average

Average

Low

Upper

Front

46.26

47.35

−0.71

−3.15

1.72

−0.63

0.5387

Eye right

50.66

44.71

5.78

1.99

9.57

3.29

0.0057^*

Eye right smile

56.01

51.07

5.14

0.88

9.40

2.60

0.0216^*

Eye left

52.26

45.92

6.92

1.76

12.09

2.89

0.0124^*

Eye left smile

65.20

54.57

11.71

4.22

19.20

3.37

0.0049^*

Total area

56.6

44.4

12.20

1.76

15.46

2.69

0.01737^*