Law James, Tomblin J Bruce, Zhang Xuyang
Department of Language and Communication Science, Queen Margaret University, Queen Margaret University Drive, Edinburgh EH21 6UU, United Kingdom.
J Speech Lang Hear Res. 2008 Jun;51(3):739-49. doi: 10.1044/1092-4388(2008/052).
A number of different systems have been suggested for classifying language impairment in children but, to date, no one system has been widely accepted.
This paper outlines an alternative system looking for distinct patterns of change in receptive language skills across time, involving a secondary analysis of children identified as having specific language impairment. Participants The participants were 184 children age-assessed at 3 time points--7, 8, and 11 years of age.
The pattern of receptive language development is highly predictable. The dominant pattern of growth is consistent with declining rates of growth over time for all children. The primary way in which the children differ is with respect to their initial severity. The testing of the 2 classification systems revealed some statistically significant differences among the subtypes with regard to the shape of the growth rates, but the effect sizes associated with these differences were very small. Thus, it is possible to conclude that beyond the dominant pattern of growth, some subtypes of language impairment at 7 years of age showed only subtle differences in receptive language change across time. The results are discussed in terms of the sample selection and the age of the children who were studied.
已经提出了许多不同的系统来对儿童语言障碍进行分类，但迄今为止，没有一个系统被广泛接受。
本文概述了一种替代系统，该系统寻找不同时间点接受性语言技能的独特变化模式，涉及对被确定为患有特定语言障碍的儿童进行二次分析。参与者 参与者为184名儿童，在7岁、8岁和11岁这三个时间点进行了年龄评估。
接受性语言发展模式具有高度可预测性。所有儿童的主要增长模式都与随着时间推移增长速度下降一致。儿童之间的主要差异在于他们最初的严重程度。对这两种分类系统的测试显示，各亚型在增长率形状方面存在一些统计学上的显著差异，但与这些差异相关的效应量非常小。因此，可以得出结论，除了主要的增长模式外，7岁时的一些语言障碍亚型在接受性语言随时间的变化方面仅表现出细微差异。将根据样本选择和所研究儿童的年龄对结果进行讨论。
