Table 3 Psychometric properties of the VISA-AC
Measurement property | Result |
|---|---|
Cronbach’s alpha | |
General students (n = 90) | 0.82 |
Sports students (n = 89) | 0.81 |
Achilles tendinopathy (n = 85) | 0.84 |
ICC (95% CI) | |
General students (n = 90) | 0.97 (0.95–0.98) |
Sports students (n = 89) | 0.97 (0.95–0.98) |
Spearman’s rho (SF-36) (n = 85) | |
VISA-VC VS PF | 0.53, P < 0.0001 |
VISA-VC VS BP | 0.61, P < 0.0001 |
Ceiling and floor effect (n = 85) | |
% of patients with the maximum score | 0% |
% of patients with the minimum score | 0% |