Conti-Ramsden Gina
Human Communication and Deafness, School of Education, University of Manchester, Manchester, United Kingdom.
J Speech Lang Hear Res. 2003 Oct;46(5):1029-37. doi: 10.1044/1092-4388(2003/082).
Thirty-two 5-year-old children with specific language impairment (SLI) and 32 chronological age (CA) controls completed 4 tasks that were considered potential positive markers for SLI. Children's performance on 2 linguistic tasks (past tense and noun plurals task) and 2 processing tasks (nonword repetition and digit recall) were examined. This approach allowed the examination of more than 1 type of marker simultaneously, facilitating both comparisons between markers and also the evaluation of combinations of markers in relation to identifying SLI. Children with SLI performed significantly worse than CA controls in all 4 marker tasks. Specificity/sensitivity analysis of the 4 marker tasks revealed nonword repetition and the past tense task to have the best overall accuracy at the 25th and 16th percentile. Finally, stepwise discriminant analysis revealed nonword repetition and past tense marking to be the best markers for identifying young children with SLI.
32名患有特定语言障碍（SLI）的5岁儿童和32名实足年龄（CA）匹配的对照组儿童完成了4项被视为SLI潜在阳性指标的任务。研究人员考察了儿童在2项语言任务（过去式和名词复数任务）和2项加工任务（非词重复和数字回忆）上的表现。这种方法能够同时考察多种类型的指标，既便于比较不同指标，也有助于评估指标组合在识别SLI方面的作用。患有SLI的儿童在所有4项指标任务中的表现均显著差于CA对照组。对这4项指标任务的特异性/敏感性分析显示，在第25百分位数和第16百分位数时，非词重复和过去式任务的总体准确率最高。最后，逐步判别分析表明，非词重复和过去式标记是识别患有SLI的幼儿的最佳指标。
