The use of lexical-phonological profiling to predict short-term speech sound norm

描述（由申请人提供）：本项目的总体目标是使用词汇-语音分析来改善2岁半至4岁之间的儿童的临床诊断和发音，这些儿童在语音习得方面有轻度至中度延迟。第一个具体的目的是获得规范性的数据，从一个大样本的2- 4岁的儿童和没有语音障碍的语音生产能力和词汇能力之间的预期关系。第二个具体的目标是确定在何种程度上观察到的语音产生能力和词汇能力之间的关系是预测持续的语音延迟或正常的清晰度。这些目标将通过使用常用的标准化测试来实现，以确定表达和接受词汇能力和清晰度能力，在一个大的，人口统计学上具有代表性的样本年龄在2岁半和4岁之间的儿童。这些信息将用于建立关于词汇和发音能力之间预期关系的规范性数据。在初始评估后6个月和1年，将对清晰度测试得分低于正常限值的儿童进行随访评估，以确定观察到的语音-词汇关系是否可预测短期语音正常化。鉴于词汇和语音能力在典型发展中的良好联系，可以预测，词汇能力和言语产生能力之间存在较大分离的儿童在没有干预的情况下，不太可能经历短期的语音正常化，而不是在每个领域具有更相称的能力的儿童。所获得的信息将有助于临床医生在决策过程中为幼儿与轻度至中度延迟语音声音的收购，并将代表一种创新的方法，语音和语言延迟的鉴别诊断。

DESCRIPTION (provided by applicant): The overall objective of this project is to use lexical-phonological profiling to improve clinical diagnostics and prognostics for children between 2 1/2 - and 4-years with mild to moderate delays in speech sound acquisition. The first specific aim is to obtain normative data regarding the expected relationship between speech production ability and vocabulary ability from a large sample of 2- to 4-year-old children with and without speech sound disorder. The second specific aim is to determine to what extent the observed relationship between speech production ability and vocabulary ability is predictive of continued speech delay or normalized articulation. These aims will be achieved by using frequently used standardized tests to determine expressive and receptive vocabulary ability and articulation ability in a large, demographically representative sample of children between the ages of 2 1/2 and 4 years. This information will be used to establish normative data regarding the expected relationship between vocabulary and articulation ability. Follow-up assessment with children who score below normal limits on the articulation test will be conducted at 6 months and 1 year post initial evaluation to determine whether the observed phonological-lexical relationship is predictive of short-term speech sound normalization. Given the well-established connection between vocabulary and phonological ability in typical development, it is predicted that children with a large dissociation between vocabulary ability and speech production ability will be less likely to experience short-term speech sound normalization without intervention than children with more commensurate abilities in each area. Information obtained will assist clinicians in the decision making process for young children with mild to moderate delays in speech sound acquisition and will represent an innovative method for differential diagnosis of speech and language delays.