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Table 5 Comparison of content validity index (S-CVI) of relevance and clarity

From: Evaluation of the content validity index of the Australian/Canadian osteoarthritis hand index, the patient-rated wrist/hand evaluation and the thumb disability exam in people with hand arthritis

Relevance Clarity
  PRWHE TDX AUSCAN   PRWHE TDX AUSCAN
PRWHE 0.85
(95% CI: 0.82–0.88)
Paired
t-Test
Paired
t-Test
PRWHE 0.95
(95% CI: 0.93–0.97)
Wilcoxon Signed ranks Wilcoxon Signed ranks
TDX p = 0.523 0.87
(95% CI: 0.85–0.89)
Paired
t-Test
TDX p = 0.153 0.91
(95% CI: 0.89–0.94)
Wilcoxon Signed ranks
AUSCAN p < 0.001 p = 0.001 0.92
(95% CI: 0.90–0.94)
AUSCAN p = 0.001 p = 0.002 0.99
(95% CI: 0.98–1.00)
  1. Paired t-Test: Student’s t-Test for Matched Pairs; Wilcoxon Signed Ranks: Wilcoxon Matched-Pairs Signed-Ranks
  2. AUSCAN Australian and Canadian Osteoarthritis Index, TDX Thumb Disability Exam, PRWHE Patient Rated Wrist/Hand Evaluation