University of Wyoming, Laramie, Wyoming, USA.
Lang Speech Hear Serv Sch. 2013 Apr;44(2):121-32. doi: 10.1044/0161-1461(2012/12-0009). Epub 2012 Nov 27.
The purpose of the present study was to (a) describe and compare the nonword repetition (NWR) performance of preschool-age Spanish-speaking children (3- to 5-year-olds) with and without language impairment (LI) across 2 scoring approaches and (b) to contrast the classification accuracy of a Spanish NWR task when item-level and percentage of phonemes correct (PPC) scoring methods are applied.
Forty-four Spanish-speaking children participated. Twenty-one children had LI and 23 had typically developing (TD) language. Children were administered a Spanish NWR task and a standardized Spanish language measure.
A developmental pattern in NWR performance was observed, and the children with LI had NWR scores that were significantly lower than those of the TD children. Whereas item-level scoring of NWR items indicated acceptable levels of sensitivity and specificity and suggested positive and negative likelihood ratios, PPC scoring of NWR items resulted in less than desirable levels of sensitivity and adequate specificity.
Item-level scoring of 3- to 5-syllable Spanish NWR items may be useful as part of an assessment battery for preschool-age Spanish-speaking children.
本研究的目的是(a)描述和比较有和没有语言障碍（LI）的学龄前西班牙语儿童（3-5 岁）在两种评分方法下的非词重复（NWR）表现，以及(b)对比当应用项目水平和正确音素百分比（PPC）评分方法时，西班牙语 NWR 任务的分类准确性。
共有 44 名西班牙语儿童参与。其中 21 名儿童有 LI，23 名儿童有典型的语言发展（TD）。儿童接受了西班牙语 NWR 任务和标准化西班牙语语言测试。
观察到 NWR 表现的发展模式，LI 儿童的 NWR 得分明显低于 TD 儿童。虽然 NWR 项目的项目水平评分显示出可接受的敏感性和特异性水平，并提示了阳性和阴性似然比，但 NWR 项目的 PPC 评分导致敏感性低于理想水平和足够的特异性。
对于 3-5 音节的西班牙语 NWR 项目的项目水平评分可能有助于作为学龄前西班牙语儿童评估工具包的一部分。
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