上海交通大学学报（医学版）

›› 2009, Vol. 29 ›› Issue (7): 772-.

• 专题报道 （儿童保健学） • 上一篇    下一篇

语言样本分析在临床应用的可行性研究

金志娟, 金星明   

  1. 上海交通大学 医学院上海儿童医学中心发育行为儿科 上海市环境与儿童健康重点实验室, 上海  200127
  • 出版日期:2009-07-25 发布日期:2009-09-16
  • 通讯作者: 金星明, 电子信箱: zhujing7@msn.cn。
  • 作者简介:金志娟 (1982—), 女, 硕士生；电子信箱: syjzj714@hotmail.com。
  • 基金资助:

    上海市重点实验室(06DZ22024)； 上海市儿科学重点学科（T0204）； 上海市医学重点学科（05Ⅲ002）

Feasibility of clinical application of language sample analysis

JIN Zhi-juan, JIN Xing-ming   

  1. Department of Developmental and Behavioral Pediatrics, Shanghai Key Laboratory of Children's Environmental Health, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai  200127,  China
  • Online:2009-07-25 Published:2009-09-16
  • Supported by:

    Shanghai Key Laboratory of Children's Environmental Health, 06DZ22024；Shanghai Key Discipline of Pediatrics, T0204；Shanghai Key Medical Discipline, 05Ⅲ002

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摘要：

目的 探讨用语言样本分析评估儿童语言发育水平的可行性，为语言样本分析应用于临床提供参考资料。方法 以50名4～6岁儿童为研究对象，计算每名儿童20 min内语言样本的平均句子长度（MLU）和词汇广度（D），并与年龄、韦克斯勒学龄前和学龄初期智力量表（WPPSI）及图片词汇测试（PPVT）结果进行相关分析；采用折半信度分析法，即分别计算并比较语言样本前100句和后100句的MLU值以及基于样本奇数词和偶数词的D值进行语言样本指标的内部信度分析。结果 MLU值和D值与年龄呈正相关；MLU值、D值、年龄、语言智商（VIQ）和PPVT智商（PPVT-IQ）5个指标之间两两比较，除VIQ与年龄无相关性(P>0.05)外，其余均呈正相关(P<0.05或P≤0.01)；MLU前100 与MLU后100以及D奇与D偶呈现高度相关(均P=0.000)。结论 语言样本分析能够反映4～6岁儿童的语言发育水平。

关键词: 平均句子长度, 词汇广度, 标准化测试, 语言样本分析

Abstract:

Objective To explore the feasibility of language sample analysis in assessment of language development in children in order to provide evidences for its clinical application. Methods The study population consisted of a cross-sectional sample of 50 preschool Putonghua-speaking children aged 4 to 6 years. The data on measurement of utterance length (MLU) and lexical diversity (D) were computed from 20 minutes' conversational language samples, and correlation analysis was conducted among MLU, D, age, Wechsler Preschool and Primary Scale of Intelligence (WPPSI) and Peabody Picture Vocabulary Test (PPVT). Splited sample analysis by comparing MLU of first one hundred utterances and MLU of last one hundred utterance, D of odd lexicals and D of even lexicals were conducted to test the validity of language sample indictors. Results MLU and D development of the preschool Putonghua-speaking children were positively related to age. MLU, D, age, verbal intelligence quotient (VIQ) and PPVT were associated with each other (P<0.05 or P≤0.01) except age and VIQ(P>0.05). There were significant correlations between MLU of first one hundred utterances and MLU of last one hundred utterances and between D of odd lexicals and D of even lexicals(P=0.000). Conclusion Language sample analysis proves to be feasible in assessment of language development in preschool children aged 4 to 6 years.

Key words: mean length of utterance, lexical diversity, standardized test, language sample analysis