Darawsheh Wesam B, Natour Yaser S, Sada Eve G
a Department of Occupational Therapy, School of Rehabilitation Sciences , University of Jordan , Amman , Jordan.
b Department of Hearing and Speech Sciences, School of Rehabilitation Sciences , University of Jordan , Amman , Jordan.
Logoped Phoniatr Vocol. 2018 Jul;43(2):80-91. doi: 10.1080/14015439.2017.1363282. Epub 2017 Aug 18.
This pilot study aimed to evaluate the internal consistency, convergent construct validity and criterion validity of Arabic version of the Vocal Tract Discomfort Scale (VTDS), and to investigate the correlation between the scores of the VTDS, the VHI and the acoustic measures of fundamental frequency (F0), shimmer, jitter and signal-to-noise ratio (SNR).
A cross-sectional study where 97 participants participated (47 males and 50 females) (mean age 20.5 ± 2.1 years) (31 student singers and 66 other non-professional voice user students). Participants were without self-perceived voice disorders who completed the VTDS-Arab scale and the Voice Handicap Index (VHI-Arab), and recorded a vocal sample of/a:/at a comfortable level.
A positive internal consistency that signifies reliability was confirmed by Cronbach's α = .884 and 0.874 for the VTDS-Arab frequency and severity subscales, respectively. A moderate positive correlation was found between the VTDS-Arab (frequency, severity, total) and the VHI-Arab total where values of Pearson's correlation coefficient were r= 0.459, 0.430 and 0.451, respectively. Weak correlations were found between all of the acoustic measures and the scores of the VTDS-Arab and VHI-Arab (total and subscales). The area under curve for the VTDS was AUC= 0.824, 0.804 and 0.817 for the VTDS frequency, VTDS severity and VTDS total, respectively.
The VTDS-Arab is a valid and reliable tool in measuring vocal tract sensations and predicting the perception of vocal handicap in student singers and can be used to predict the vocal load among professional voice users.
本试点研究旨在评估阿拉伯语版声道不适量表（VTDS）的内部一致性、收敛性结构效度和效标效度，并研究VTDS得分、嗓音障碍指数（VHI）与基频（F0）、微扰、抖动和信噪比（SNR）声学指标之间的相关性。
一项横断面研究，97名参与者参与（47名男性和50名女性）（平均年龄20.5±2.1岁）（31名学生歌手和66名其他非专业嗓音使用者学生）。参与者无自我感知的嗓音障碍，完成了阿拉伯语版VTDS量表和嗓音障碍指数（阿拉伯语版VHI），并在舒适水平下录制了/a:/的嗓音样本。
VTDS阿拉伯语版频率和严重程度子量表的Cronbach's α分别为0.884和0.874，证实了表明可靠性的积极内部一致性。VTDS阿拉伯语版（频率、严重程度、总分）与阿拉伯语版VHI总分之间存在中度正相关，Pearson相关系数值分别为r = 0.459、0.430和0.451。在所有声学指标与VTDS阿拉伯语版和阿拉伯语版VHI（总分和子量表）得分之间发现了弱相关性。VTDS频率、VTDS严重程度和VTDS总分的曲线下面积分别为AUC = 0.824、0.804和0.817。
阿拉伯语版VTDS是一种有效且可靠的工具，可用于测量学生歌手的声道感觉并预测嗓音障碍的感知，还可用于预测专业嗓音使用者的嗓音负荷。
