Rispoli Matthew, Hadley Pamela, Holt Janet
Department of Speech and Hearing Science, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA.
J Speech Lang Hear Res. 2008 Aug;51(4):953-66. doi: 10.1044/1092-4388(2008/070).
The purpose of this research was to test the empirical validity of the stall-revision distinction and to provide a characterization of the development of sentence production using this distinction.
The stall-revision dichotomy for sentence disruptions was studied in 20 typically developing children. The children's production of short sentences was observed from 21 to 33 months of age. Developmental changes in stall and revision rates were analyzed using hierarchical linear modeling, time centered at 27 months. Differences between stall and revision rates across 2 levels of sentence length were also explored with repeated-measures analysis of variance when the children were 33 months of age.
A clear development trend was observed for revision rate. At 27 months of age, revisions occurred in approximately 1% of children's sentences and increased with age. No significant individual differences were apparent in the growth parameters for revision rate. In contrast, group developmental trends in stall rate were not discernable. However, stall rate increased significantly with sentence length, whereas revision rate remained constant.
The contrasting pattern of findings provides support for the stall-revision dichotomy. The authors argue that the developmental changes in revision rate reflect changes in the children's ability to monitor their language production.
本研究旨在检验停顿-修正区分的实证有效性，并利用这一区分对句子产出的发展进行描述。
对20名发育正常的儿童进行了句子中断的停顿-修正二分法研究。观察了这些儿童在21至33个月大时短句的产出情况。使用分层线性模型分析停顿和修正率的发展变化，时间以27个月为中心。当儿童33个月大时，还通过重复测量方差分析探讨了两个句子长度水平上停顿率和修正率之间的差异。
观察到修正率有明显的发展趋势。在27个月大时，修正出现在儿童句子中的比例约为1%，并随年龄增长而增加。修正率的增长参数没有明显的个体差异。相比之下，停顿率的群体发展趋势不明显。然而，停顿率随句子长度显著增加，而修正率保持不变。
研究结果的对比模式为停顿-修正二分法提供了支持。作者认为，修正率的发展变化反映了儿童监测其语言产出能力的变化。
