Table 3 The reliability of the EVGS

Item 1

0.78±0.64

0.54±0.70

0.859 (0.75–0.92)

0.931

0.24

0.66

Item 2

0.40±0.60

0.54±0.64

0.850 (0.73–0.91)

0.930

0.23

0.64

Item 3

0.38±0.63

0.52±0.70

0.812 (0.66–0.89)

0.930

0.27

0.75

Item 4

0.68±0.58

0.32±0.62

0.676 (0.42–0.81)

0.934

0.38

1.07

Item 5

0.84±0.61

0.36±0.66

0.742 (0.54–0.85)

0.933

0.42

1.18

Item 6

0.80±0.60

0.48±0.64

0.719 (0.50–0.84)

0.932

0.31

0.88

Item 7

0.42±0.67

0.48±0.70

0.896 (0.81–0.94)

0.929

0.21

0.59

Item 8

1.00±0.70

0.18±0.48

0.567 (0.23–0.75)

0.934

0.46

1.27

Item 9

0.40±0.70

0.40±0.70

0.884 (0.79–0.93)

0.930

0.23

0.66

Item 10

0.40±0.67

0.44±0.78

0.895 (0.81–0.94)

0.930

0.21

0.60

Item 11

0.50±0.61

0.32±0.65

0.757 (0.57–0.86)

0.933

0.30

0.83

Item 12

0.60±0.63

0.34±0.55

0.428 (−0.07–0.67)

0.940

0.47

1.32

Item 13

0.30±0.50

0.26±0.48

0.594 (0.28–0.77)

0.933

0.31

0.88

Item 14

0.54±0.61

0.16±0.42

0.590 (0.27–0.76)

0.931

0.39

1.08

Item 15

0.60±0.63

0.18±0.43

0.477 (0.07–0.70)

0.931

0.45

1.26

Item 16

0.52±0.58

0.26±0.52

0.586 (0.27–0.76)

0.935

0.37

1.03

Item 17

0.64±0.63

0.12±0.48

0.571 (0.24–0.75)

0.932

0.41

1.14

EVGS

9.8±7.5

5.9±8.4

0.947 (0.90–0.97)

0.936

1.72

4.78