Department of ENT and HNS, Medical Faculty of Comenius University, Bratislava, Slovakia; Department of Communication Disorders, Faculty of Education, Comenius University, Bratislava, Slovakia.
Department of Communication Disorders, Faculty of Education, Comenius University, Bratislava, Slovakia.
J Voice. 2022 Jan;36(1):145.e1-145.e6. doi: 10.1016/j.jvoice.2020.04.003. Epub 2020 May 8.
The objective of the study is to verify the psychometric properties of Voice Handicap Index (VHI-30) in Slovak language.
Original VHI-30 has been translated into the Slovak language. Fifty-two dysphonic individuals and 104 individuals of the control group without voice disorders were included in the study. Item to total correlation, internal consistency (Cronbach's alpha coefficient α and split-half coefficient), test-retest reliability (correlation coefficient), and validity of VHI 30 (Kruskal-Wallis test) were analyzed.
Item analysis proved that questionnaire items have a good to excellent correlation to the total score (0.42-0.87, P < 0.05). Good internal consistency was proved by calculating Cronbach's alpha coefficient (0.88, P < 0.05) and split-half correlation for the Total score in VHI (0.997, P < 0.05). Test-retest reliability was found to be strong (0.86, P < 0.05). Validity results of Slovak VHI suggests that total mean scores of control group were significantly lower than total mean scores of dysphonic groups (structural, neurogenic, inflammatory, functional, and nonspecified). Total mean scores indicated no statistically significant difference between dysphonic groups (P < 0.05). The cut-off value of 21 points was determined by Receiver Operating Characteristics (ROC) analysis.
The results of the study proved that the Slovak VHI-30 is a reliable and valid tool. It is useful for assessing disadvantage related to voice disorders from the patient's perspective.
本研究旨在验证斯洛伐克语嗓音障碍指数（VHI-30）的心理测量特性。
原始的 VHI-30 已被翻译成斯洛伐克语。研究纳入了 52 名发音障碍者和 104 名无嗓音障碍的对照组个体。分析了项目与总分的相关性、内部一致性（Cronbach's alpha 系数α和半分系数）、测试-重测信度（相关系数）以及 VHI 30 的有效性（Kruskal-Wallis 检验）。
项目分析证明问卷项目与总分具有良好到极好的相关性（0.42-0.87，P<0.05）。通过计算 Cronbach's alpha 系数（0.88，P<0.05）和 VHI 总分的半分相关系数（0.997，P<0.05），证明了良好的内部一致性。测试-重测信度被认为是强的（0.86，P<0.05）。斯洛伐克 VHI 的有效性结果表明，对照组的总分明显低于发音障碍组的总分（结构性、神经性、炎症性、功能性和非特异性）。发音障碍组之间的总分无统计学差异（P<0.05）。通过接受者操作特征（ROC）分析确定了 21 分的截断值。
研究结果证明，斯洛伐克语 VHI-30 是一种可靠且有效的工具。它可用于从患者角度评估与嗓音障碍相关的劣势。
