Department of Language and Communication, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
Institute of Health Sciences, Geb.58.600, R. 16, University of Lübeck, Germany, Ratzeburger Allee 160, 23562 Lübeck, Germany.
J Commun Disord. 2022 Jan-Feb;95:106168. doi: 10.1016/j.jcomdis.2021.106168. Epub 2021 Nov 16.
The identification and differential diagnosis of children with speech sound disorders (SSD) is an important task of paediatric speech-language pathologists (SLPs). A correct identification requires valid and reliable assessment tools. Therefore, the aim of the present study was to investigate the diagnostic validity and accuracy as well as inter-rater reliability of the phonology test of LogoFova which was developed for Danish-speaking children.
Investigation was carried out on two Danish-speaking populations: 61 suspected typically developing (TD) children and 61 children with suspected speech sound disorder aged 2-6 years. All children were assessed with the single-word picture-naming test of LogoFoVa. In order to determine diagnostic validity, it was investigated whether the test differentiated TD children from children with SSD as well as subgroups of SSD via a phonetic and phonological pattern analysis. Two different cut-off criteria were applied for the definition of patterns. Sensitivity and specificity as well as likelihood ratios were additionally calculated. To determine inter-rater reliability, transcriptions, pattern analyses and subgrouping were compared across raters.
Overall, diagnostic validity of the picture-naming test of LogoFoVa was good as differentiation between TD children and children with suspected SSD as well as amongst subgroups of SSD (articulation impairment, phonological delay and atypical speech development) was possible. However, accuracy of differentiation between TD children and children with SSD was affected by the cut-off criterion applied. Inter-rater reliability was found to be almost perfect for transcription and moderate for identification of phonological processes as well as for subgrouping. Again, agreement rates depended on the cut-off criterion chosen for the definition of a phonological pattern.
LogoFoVa was found to be a reliable and valid clinical tool for the identification and subgrouping of children with SSD in Danish SLP practice if a new cut-off criterion was applied.
儿童言语障碍（SSD）的识别和鉴别诊断是儿科言语语言病理学家（SLP）的重要任务。正确的识别需要有效的、可靠的评估工具。因此，本研究的目的是调查为丹麦语儿童开发的 LogoFova 语音测试的诊断有效性和准确性以及评分者间的可靠性。
在两个讲丹麦语的人群中进行了研究：61 名疑似典型发育（TD）儿童和 61 名 2-6 岁疑似言语障碍的儿童。所有儿童均接受了 LogoFoVa 的单字图片命名测试。为了确定诊断的有效性，通过语音和语音模式分析，研究了该测试是否可以区分 TD 儿童和 SSD 儿童以及 SSD 的亚组。应用了两种不同的截断标准来定义模式。此外，还计算了灵敏度、特异性和似然比。为了确定评分者间的可靠性，对转录、模式分析和亚组分类进行了比较。
总体而言，LogoFoVa 的图片命名测试对 TD 儿童和疑似 SSD 儿童以及 SSD 的亚组（发音障碍、语音延迟和非典型言语发展）的区分具有较好的诊断有效性。然而，TD 儿童和 SSD 儿童之间的区分准确性受到所应用的截断标准的影响。发现转录的评分者间可靠性几乎是完美的，而对语音过程的识别和亚组分类的可靠性是中度的。同样，协议率取决于为定义语音模式而选择的截断标准。
如果应用新的截断标准，LogoFoVa 在丹麦 SLP 实践中被发现是一种可靠和有效的临床工具，可用于识别和亚组分类 SSD 儿童。
