Department of Chinese and Bilingual Studies, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
Department of Chinese and Bilingual Studies, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
J Voice. 2023 Jul;37(4):632.e21-632.e28. doi: 10.1016/j.jvoice.2021.03.019. Epub 2021 May 21.
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 indices ≥ 0.842) and excellent internal consistency (Part 1: α = 0.945, Part 2: α = 0.914, Part 3: α = 0.951). Parts 1 and 2 of the questionnaire showed good construct validity (Part 1: t(204) = 5.743, P < 0.001; Part 2: t(204) = 5.049, P < 0.001). Test-retest reliability ranged from acceptable (Part 3: Ρ = 0.702) to good (Part 1: Ρ = 0.885, Part 2: Ρ = 0.827). ROC curves showed acceptable and close-to-acceptable intrinsic accuracies for Parts 1 (Aera under curve (AUC) = 0.712) and 2 (AUC = 0.694) respectively. Cutoff scores of 25 and 10 are suggested for Parts 1 and 2 respectively.
The VFI(HK) is a valid and sensitive assessment tool. It may be adopted to identify individuals with vocal fatigue in the Hong Kong-Chinese population.
本研究旨在跨文化调适及验证香港中文版的嗓音疲劳指数（VFI（HK））。
原始英文版的嗓音疲劳指数（VFI）经翻译及调适成为 VFI（HK）。共有 206 位受测者（疲劳组 87 人，对照组 119 人）完成了 VFI（HK），并分析其有效性、可靠性和受试者工作特征（ROC）曲线。
VFI（HK）表现出良好的心理计量学特性。它具有良好的内容效度（量表级内容效度指数≥0.842）和极好的内部一致性（第 1 部分：α=0.945，第 2 部分：α=0.914，第 3 部分：α=0.951）。问卷的第 1 及第 2 部分显示出良好的结构效度（第 1 部分：t（204）=5.743，P<0.001；第 2 部分：t（204）=5.049，P<0.001）。测试-重测信度范围从可接受（第 3 部分：Ρ=0.702）到良好（第 1 部分：Ρ=0.885，第 2 部分：Ρ=0.827）。ROC 曲线显示第 1 部分（曲线下面积（AUC）=0.712）及第 2 部分（AUC=0.694）具有可接受和接近可接受的内在准确性。建议第 1 及第 2 部分的临界值分别为 25 分和 10 分。
VFI（HK）是一种有效和敏感的评估工具。它可能被用于识别香港中文人群中的嗓音疲劳个体。
