https://www.selleckchem.com/pr....oducts/nvp-tae226.ht
This study aimed to cross-culturally adapt and validate the Hong Kong-Chinese version of the Vocal fatigue index (VFI(HK)). The original English version of the Vocal fatigue index (VFI) was translated and adapted to the VFI(HK). A total of 206 subjects (87 in the Fatigue group and 119 in the Control group) completed the VFI(HK) and validity, reliability and receiver operating characteristic (ROC) were analysed. The VFI(HK) exhibited satisfactory psychometric properties. It showed good content validity (scale-level content validity in
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