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Table 2 Internal consistency reliability (Cronbach's α) of each dimension for different samples

From: Quality of life of Chinese urban community residents: a psychometric study of the mainland Chinese version of the WHOQOL-BREF

Sample

Physical

Psychological

Social relationship

Environmental

Guangzhou (N = 1052)

0.67(0.71)a

0.77

0.72(0.45)a

0.78

Without chronic illness (N = 823)

0.66(0.70)a

0.77

0.75(0.47)a

0.79

With chronic illness (N = 229)

0.61(0.65)a

0.72

0.53(0.34)a

0.75

Taiwan Chinese (N = 1017)

0.76

0.70

0.68(0.72)b

0.75(0.77)b

Hong Kong Chinese (N = 848)c

0.76

0.80

0.67

0.78

Normative Sample (23 countries) (N = 11830)d

0.82

0.81

0.68

0.80

  1. aIn brackets: including two additional items for the mainland Chinese version
  2. bIn brackets: including additional items for the Taiwanese version: "Do you feel respected by others?" (social domain) and "Are you usually able to get the things you like to eat?" (environmental domain [25])
  3. cHong Kong data [24]
  4. dNormative Sample (23 countries) data [9]