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Table 3 Psychometric properties of the VISA-AC

From: The Victorian Sports Assessment Institute-Achilles Tendinopathy Questionnaire (VISA-A): Chinese cross-cultural adaptation and psychometric validation

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%
  1. PF, physical function; BP, bodily pain