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Table 2 The Obsessive-Compulsive Drug Use Scale (OCDUS): Means (M), standard deviations (SD), factor loadings, communalities (h2), and Cronbach’s α for the three-factor model

From: The Chinese version of obsessive compulsive drug use scale: validation in outpatient methadone maintenance treatment program

   

Factor loadings

 

Cronbach’s α(item deletion)

The Chinese OCDUS

Item

M

SD

1

2

3

h2

8

1.74

1.14

0.85

0.15

0.14

0.76

0.869

1

12

1.53

0.96

0.84

0.11

0.08

0.73

0.875

1

2

2.01

1.00

0.83

0.25

0.07

0.76

0.867

1

7

1.96

1.03

0.82

0.24

0.06

0.74

0.869

1

10

2.29

1.31

0.70

0.26

−0.03

0.56

0.900

2

1

1.90

1.13

0.67

0.28

0.08

0.54

0.891

1

4

2.40

1.29

0.36

0.86

0.01

0.87

0.655

2

3

2.15

1.22

0.33

0.86

0.07

0.85

0.672

2

9

2.36

1.30

0.46

0.60

0.00

0.58

0.783

R

5

2.98

1.37

0.00

0.59

−0.56

0.66

0.866

2

13

2.58

1.39

0.12

0.12

0.85

0.75

0.391

3

11

2.64

1.45

0.12

0.27

−0.75

0.66

0.669

2

6

3.46

1.40

0.29

0.22

0.65

0.56

0.618

3

  1. R: removed by Yang et al. 2016. The last column indicates the allocation of items among factors based on Yang et al. 2016
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BMC Psychiatry

ISSN: 1471-244X

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