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Table 3 Internal consistency reliability of the Sinhala version of WEMWBS

From: Measuring mental well-being in Sri Lanka: validation of the Warwick Edinburgh Mental Well-being Scale (WEMWBS) in a Sinhala speaking community

Item

Floor effect N(%)

Ceiling effect

N(%)

Item-total Correlation

Coefficient

Cronbach’s alpha if item deleted

(14-item scale)

Cronbach’s alpha if item deleted

(7-item scale)

I’ve been feeling optimistic about the futurea

14 (4.8)

49 (16.7)

0.50

0.90

0.83

I’ve been feeling usefula

5 (1.7)

71 (24.1)

0.66

0.89

0.80

I’ve been feeling relaxeda

19 (6.5)

62 (21.1)

0.59

0.90

0.82

I’ve been feeling interested in other people

7 (2.4)

75 (25.5)

0.38

0.90

 

I’ve had energy to spare

13 (4.4)

60 (20.4)

0.62

0.89

 

I’ve been dealing with problems wella

7(2.4)

82 (27.9)

0.70

0.89

0.80

I’ve been thinking clearlya

5 (1.7)

67 (22.8)

0.68

0.89

0.80

I’ve been feeling good about myself

10 (3.4)

109 (37.1)

0.64

0.89

 

I’ve been feeling close to other peoplea

7 (2.4)

55 (18.7)

0.59

0.90

0.82

I’ve been feeling confident

6 (2.0)

120 (40.8)

0.69

0.89

 

I’ve been able to make up mind about thingsa

6 (2.0)

59 (20.1)

0.66

0.89

0.81

I’ve been feeling loved

7 (2.4)

79 (26.9)

0.57

0.90

 

I’ve been interested in new things

8 (2.7)

85 (28.9)

0.50

0.90

 

I’ve been feeling cheerful

10 (3.4)

62 (21.1)

0.70

0.89

 
  1. a Items in the 7-item scale