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Table 3 External reliability of the instruments

From: Cross-cultural adaptation, reliability, and validity of the Vertigo symptom scale–short form in the central Kurdish dialect

 

VSS − SF − CK n = 74

n = 76

n = 35

VSS − V

VSS − AA

VSS − T

VAS − T

TR − T

 

ICCa

n

ICCa

n

ICCa

n

ICCa

n

ICCa

n

Intra-rater1

0.88

28

0.93

28

0.95

28

0.98

28

0.95

12

Intra-rater2

0.83

28

0.96

28

0.97

28

0.90

29

0.80

13

Inter-rater

0.97

18

0.93

18

0.97

18

0.96

19

0.91

10

Test-retest

0.93

74

0.94

74

0.97

74

0.96

76

0.90

35

  1. Note: aIntraclass correlation coefficient: the model, two-way mixed effects; the type, mean of k raters; and the definition, absolute agreement
  2. Abbreviations: VSS–SF–CK/V/AA/T Vertigo Symptom Scale–Short Form–Central Kurdish/Vestibular/Autonomic-Anxiety/Total, VAS–T Visual Analogue Scale–Total, TR–T Tandem Romberg–Total