Indicators of Communication Limitation in Dysarthria and Their Relation to Auditory-Perceptual Speech Symptoms: Construct Validity of the KommPaS Web App
Indicators of Communication Limitation in Dysarthria and Their Relation to Auditory-Perceptual Speech Symptoms: Construct Validity of the KommPaS Web App
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DOI：
10.1044/2021_jslhr-21-00215
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发表时间：
2022-01-01
影响因子：
2.6
通讯作者：
Ziegler, Wolfram
中科院分区：
文献类型：
--
作者：
Lehner, Katharina;Ziegler, Wolfram
目的：尽管对构音障碍的沟通相关参数进行了广泛的研究，如可理解性、自然度和感知听者的努力，但现有的证据尚未转化为临床适用的、全面的、有效的诊断工具。本研究解决了言语障碍中的沟通相关参数（KommPaS），这是一种新的基于网络的诊断工具，通过在线众包来测量构音障碍患者的沟通限制指数。更具体地说，它回答了关于KommPaS结构效度的问题。在第一部分中，我们探讨了KommPaS变量可理解性、自然度、感知听者努力度和语速之间的相互关系，以便全面了解患者的局限性并避免收集冗余信息。其次，研究运动言语症状对KommPaS变量的影响，以描述两个互补诊断视角之间的结构关系。方法：使用KommPaS对100名不同病因和不同严重程度构音障碍患者进行检查，以获得基于外行的沟通水平参数数据，并使用Bogenhausen构音障碍量表（BoDyS）获得基于专家的功能水平的构音障碍症状数据。利用结构方程模型分析了KommPaS变量的内部结构及其与BoDyS变量的依赖关系。结果：尽管具有高度的多重共线性，但所有KommPaS变量都显示出互补的诊断信息，并且它们的相互联系在路径图模型中被描绘出来。关于BoDyS量表对KommPaS变量的影响，单独的线性回归模型揭示了合理的预测集。开发了KommPaS和BoDyS变量的完整路径模型，以映射构音障碍评估中功能和交流水平变量之间复杂的相互作用。结论：为了验证一种诊断构音障碍中交流限制的新临床工具，本研究首次全面描绘了构音障碍的听觉-知觉特征如何在基于专家的功能和基于外行人的交流评估水平上相互作用。
Purpose: Despite extensive research into communication-related parameters in dysarthria, such as intelligibility, naturalness, and perceived listener effort, the existing evidence has not been translated into a clinically applicable, comprehensive, and valid diagnostic tool so far. This study addresses Communication-Related Parameters in Speech Disorders (KommPaS), a new web-based diagnostic instrument for measuring indices of communication limitation in individuals with dysarthria through online crowdsourcing. More specifically, it answers questions about the construct validity of KommPaS. In the first part, the interrelationship of the KommPaS variables intelligibility, naturalness, perceived listener effort, and speech rate were explored in order to draw a comprehensive picture of a patient's limitations and avoid the collection of redundant information. Second, the influences of motor speech symptoms on the KommPaS variables were studied in order to delineate the structural relationships between two complementary diagnostic perspectives. Method: One hundred persons with dysarthria of different etiologies and varying degrees of severity were examined with KommPaS to obtain layperson-based data on communication-level parameters, and with the Bogenhausen Dysarthria Scale (BoDyS) to obtain expert-based, function-level data on dysarthria symptoms. The internal structure of the KommPaS variables and their dependence on the BoDyS variables were analyzed using structural equation modeling. Results: Despite a high multicollinearity, all KommPaS variables were shown to provide complementary diagnostic information and their mutual interconnections were delineated in a path graph model. Regarding the influence of the BoDyS scales on the KommPaS variables, separate linear regression models revealed plausible predictor sets. A complete path model of KommPaS and BoDyS variables was developed to map the complex interplay between variables at the functional and the communication levels of dysarthria assessment. Conclusion: In validating a new clinical tool for the diagnostics of communication limitations in dysarthria, this study is the first to draw a comprehensive picture of how auditory-perceptual characteristics of dysarthria interact at the levels of expert based functional and layperson-based communicative assessments.