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Table 3 Internal consistency: sensitivity analysis for the CES-D in suicide attempters and comparison residents

From: Reliability and validity of the Center for Epidemiologic Studies Depression Scale (CES-D) among suicide attempters and comparison residents in rural China

 

Suicide attempters

Controls

Items

M

SD

r

α

M

SD

r

α

Depression 1

22.21

4.04

0.74

0.94

2.92

2.50

0.47

0.89

Depression 2

22.54

4.05

0.66

0.94

2.87

2.49

0.40

0.89

Depression 3

22.25

4.04

0.75

0.94

2.94

2.48

0.68

0.88

Depression 4

22.16

4.05

0.65

0.94

2.85

2.47

0.50

0.89

Depression 5

22.51

4.05

0.67

0.94

2.93

2.52

0.26

0.89

Depression 6

21.93

4.03

0.84

0.94

2.87

2.46

0.70

0.88

Depression 7

22.33

4.04

0.73

0.94

2.83

2.46

0.59

0.88

Depression 8

22.06

4.04

0.72

0.94

2.88

2.48

0.54

0.89

Depression 9

22.31

4.04

0.74

0.94

2.97

2.50

0.52

0.89

Depression 10

23.26

4.13

0.30

0.95

3.00

2.52

0.36

0.89

Depression 11

22.35

4.05

0.65

0.94

2.75

2.46

0.51

0.89

Depression 12

21.81

4.04

0.74

0.94

2.88

2.47

0.57

0.88

Depression 13

22.37

4.05

0.68

0.94

2.91

2.50

0.43

0.89

Depression 14

22.67

4.07

0.59

0.94

2.93

2.49

0.56

0.89

Depression 15

23.23

4.13

0.31

0.95

2.96

2.50

0.44

0.89

Depression 16

22.01

4.04

0.72

0.94

2.89

2.48

0.49

0.89

Depression 17

22.81

4.09

0.56

0.94

3.01

2.52

0.47

0.89

Depression 18

21.98

4.03

0.78

0.94

2.85

2.45

0.71

0.88

Depression 19

23.26

4.13

0.30

0.95

3.01

2.52

0.43

0.89

Depression 20

22.18

4.03

0.80

0.94

2.88

2.45

0.73

0.88

  1. M: Scale mean if item deleted; SD: Standard deviation; r: Corrected item-total correlation.
  2. α: Cronbach’s alpha if item deleted.