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在双语儿童的语法和发音长度的诊断准确性

Michelle Hernandez¹, Juliana Ronderos², Anny Patricia Castilla-Earls¹

¹Department of Communication Sciences and Disorders, University of Houston, TX.

Language, speech, and hearing services in schools

|February 6, 2024

概括

这项研究发现,单词发言的平均长度 (MLUw) 和语法发言的百分比 (PGU) 可以帮助识别双语儿童的发育语言障碍 (DLD). 这些语言措施为DLD识别提供了相当的诊断准确性.

科学领域:

语言学的语言学.
发展心理学发展心理学
临床语言学临床语言学

背景情况:

发育性语言障碍 (DLD) 影响儿童的语言学习.
由于语言互动,双语儿童的准确诊断具有挑战性.
自发语言样本分析是关键的诊断工具.

研究的目的:

评估西班牙语-英语双语儿童中DLD的词语平均发音长度 (MLUw) 和语法发音百分比 (PGU) 的诊断准确性.
为了比较"最佳语言"和"总语言"方法在DLD识别中的有效性.
确定这些措施在区分患有DLD和没有DLD的儿童方面的有用性.

主要方法:

分析了74名西班牙语-英语双语儿童的自发语言样本 (36名有DLD,38名没有).
在英语和西班牙语中使用无字图书,通过故事重述和生成任务引发语言.
使用语言样本系统分析 (SALS) 框架提取了MLUw和PGU.

主要成果:

一个包括PGU,MLUw和年龄在内的预测模型证明了识别DLD的最高诊断准确性.
"最佳语言"和"总语言"两种方法都显示出相当的诊断准确性.
后勤回归证实了PGU和MLUw在预测组成员资格方面的重要性.

结论:

PGU和MLUw是区分双语儿童与没有DLD的宝贵工具.
这些发现支持这些自发语言措施的临床实用性.
进一步的研究可以完善双语人口的诊断协议.

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