Associations Between Speech Perception, Vocabulary, and Phonological Awareness Skill in School-Aged Children With Speech Sound Disorders.
Associations Between Speech Perception, Vocabulary, and Phonological Awareness Skill in School-Aged Children With Speech Sound Disorders.
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DOI：
10.1044/2020_jslhr-20-00356
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发表时间：
2021-01
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影响因子：
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通讯作者：
Nina R. Benway;Kelly Garcia;Elaine R. Hitchcock;Tara McAllister;Megan C. Leece;Qiu Wang;J. Preston
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作者：
Nina R. Benway;Kelly Garcia;Elaine R. Hitchcock;Tara McAllister;Megan C. Leece;Qiu Wang;J. Preston
目的前人的研究对语音障碍学龄前儿童的语音意识(PA)、词汇和言语知觉之间的关系的描述相互矛盾。这项研究试图在有影响/ɹ/的残存语音错误的学龄儿童样本中确定这些关系的性质。方法研究对象为7岁、0-17岁、4岁(岁、月)、残差影响/ɹ/的儿童110名。获得了在AN/ɹ/识别任务中的知觉敏锐度和知觉偏差、接受性词汇和PA的数据。构建了一个理论和经验相结合的路径模型，该模型以词汇量为中介变量，对言语知觉的两个测量指标与PA之间的关系进行了中介。模型参数通过具有对非正态分布稳健的标准误差的最大似然估计来确定。蒙特卡罗模拟被用来检验在当前样本量下获得的功率。结果饱和路径模型可解释PA中19%的变异。年龄调整知觉敏锐度与PA之间的直接路径显著，词汇量与PA之间的直接路径也显著。与我们的假设相反，目前的样本中没有证据表明词汇技能在言语知觉和PA之间的关系中起中介作用。在当前样本大小下，每条单独的路径都有足够的电力。结论在有残馀言语错误的学龄儿童中，通过错误声音的知觉敏锐度测量的言语知觉与PA之间的持续关系的整体模型提供了证据。因此，言语感知的测量仍然与对这一人群中学龄儿童和青少年的评估有关。补充材料https://doi.org/10.23641/asha.13641275.
Purpose Prior studies report conflicting descriptions of the relationships between phonological awareness (PA), vocabulary, and speech perception in preschoolers with speech disorders. This study sought to determine the nature of these relationships in a sample of school-aged children with residual speech sound errors affecting /ɹ/. Method Participants included 110 children aged 7;0-17;4 (years;months) with residual errors impacting /ɹ/. Data on perceptual acuity and perceptual bias in an /ɹ/ identification task, receptive vocabulary, and PA were obtained. A theoretically and empirically motivated path model was constructed with vocabulary mediating the relationship between two measures of speech perception and PA. Model parameters were determined through maximum likelihood estimation with standard errors that were robust to nonnormality. Monte Carlo simulation was used to examine achieved power at the current sample size. Results The saturated path model explained 19% of the variance in PA. The direct path between age-adjusted perceptual acuity and PA was significant, as was the direct path between vocabulary and PA. Contrary to our hypothesis, there was no evidence in the current sample that vocabulary skill mediated the relationship between speech perception and PA. Each individual path was adequately powered at the current sample size. Conclusions The overall model provided evidence for a continued relationship between speech perception, measured by perceptual acuity of the sound in error, and PA in school-aged children with residual speech errors. Thus, measures of speech perception remain relevant to the assessment of school-aged children and adolescents in this population. Supplemental Material https://doi.org/10.23641/asha.13641275.