Division of Speech and Hearing Sciences, 5/F Prince Philip Dental Hospital, 34 Hospital Road, Sai Ying Pun, Hong Kong, SAR, China.
J Speech Lang Hear Res. 2010 Jun;53(3):648-69. doi: 10.1044/1092-4388(2009/08-0039).
This study examined the narrative skills of Cantonese-speaking school-age children to fill a need for a normative language test for school-age children.
To provide a benchmark of the narrative skills of Cantonese-speaking children; to identify which of the microstructure components was the best predictor of age; and to determine the diagnostic accuracy of the test components.
Data were collected from 1,120 Cantonese-speaking children between the ages of 4;10 (years;months) and 12;01, using a story-retell of a 24-frame picture series. Four narrative components (syntactic complexity, semantic score, referencing, and connective use) were measured.
Each measure reflected significant age-related differences in narrative ability. Regression analyses revealed that vocabulary and syntactic complexity were the best predictors of grade. All measures showed high sensitivity (86%-94%) but relatively low specificity (60%-90%) and modest likelihood ratio (LR) values: LR+ (2.15-9.42) and LR- (0.07-0.34).
Narrative assessment can be standardized to be a reliable and valid instrument to assist in the identification of children with language impairment. Syntactic complexity is not only a strong predictor of grade but was also particularly vulnerable in Cantonese-speaking children with specific language impairment. Further diagnostic research using narrative analysis is warranted.
本研究考察了粤语学龄儿童的叙事技能,以填补学龄儿童规范语言测试的空白。
为粤语儿童的叙事技能提供基准;确定微观结构成分中哪个是年龄的最佳预测指标;并确定测试成分的诊断准确性。
使用 24 帧图片系列的故事复述,从 4 岁 10 个月至 12 岁 01 个月的 1120 名粤语儿童中收集数据。测量了四个叙事成分(句法复杂性、语义得分、参照和连接词使用)。
每个指标都反映了叙事能力与年龄相关的显著差异。回归分析显示,词汇和句法复杂性是年级的最佳预测指标。所有指标的敏感性均较高(86%-94%),但特异性相对较低(60%-90%),似然比(LR)值适中:LR+(2.15-9.42)和 LR-(0.07-0.34)。
叙事评估可以标准化为一种可靠且有效的工具,以帮助识别语言障碍儿童。句法复杂性不仅是年级的有力预测指标,而且在特定语言障碍的粤语儿童中也特别脆弱。需要进一步使用叙事分析进行诊断研究。