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Table 3 ASQOL Test-Retest Reliability and Internal Consistency Values by Country

From: Translation and validation of non-English versions of the Ankylosing Spondylitis Quality of Life (ASQOL) questionnaire

 

Test-retest reliability

Internal Consistency:

Cronbach's Alpha Coefficient

 

N

Correlation*

N

Baseline

Week 12

US

102

.85

148

.85

.92

Canadian English

51

.86

66

.86

.91

Canadian French

12

.87

16

.44

.83

French

12

.96

18

.81

.93

German

28

.77

37

.79

.81

Italian

12

.84

22

.87

.93

Spanish

14

.77

24

.84

.93

Swedish

7

.85

9

.81

.86

  1. * Spearman rank