Table 2 Item analysis on the total sample.

From: Exploratory graph analysis on the Connor–Davidson Resilience Scale (CD-RISC) among older adults in China

Item

Mean

SD

Skew

Item difficulty

Item discrimination

α if deleted

1

2.57

0.93

− 0.42

0.64

0.69

0.97

2

2.60

0.98

− 0.54

0.65

0.63

0.97

3

1.59

1.18

0.23

0.40

0.41

0.97

4

2.33

0.96

− 0.24

0.58

0.79

0.97

5

2.25

0.98

− 0.19

0.45

0.81

0.97

6

2.24

0.98

− 0.17

0.56

0.78

0.97

7

2.15

0.98

− 0.07

0.54

0.81

0.97

8

2.27

0.97

− 0.19

0.57

0.78

0.97

9

2.40

0.94

− 0.26

0.60

0.74

0.97

10

2.45

0.95

− 0.36

0.61

0.79

0.97

11

2.28

0.96

− 0.21

0.57

0.84

0.97

12

2.30

0.96

− 0.23

0.58

0.81

0.97

13

2.44

0.98

− 0.34

0.61

0.73

0.97

14

2.28

0.96

− 0.19

0.57

0.82

0.97

15

2.00

1.08

− 0.04

0.50

0.78

0.97

16

2.21

1.00

− 0.19

0.55

0.81

0.97

17

2.16

1.03

− 0.17

0.54

0.82

0.97

18

2.09

1.00

− 0.07

0.52

0.81

0.97

19

2.34

0.96

− 0.31

0.59

0.80

0.97

20

1.92

1.04

0.03

0.48

0.68

0.97

21

2.07

1.02

− 0.11

0.52

0.78

0.97

22

2.32

0.99

− 0.30

0.58

0.78

0.97

23

1.80

1.09

0.12

0.45

0.72

0.97

24

2.15

1.04

− 0.20

0.54

0.78

0.97

25

2.08

1.06

− 0.14

0.52

0.75

0.97

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