Scarborough H, Wyckoff J, Davidson R
J Speech Hear Res. 1986 Sep;29(3):394-9. doi: 10.1044/jshr.2903.394.
Although a linear relationship between age and utterance length during the preschool years has been reported, that result was only partially replicated from age 2 to 5 years in two new research samples, one cross-sectional and the other longitudinal in design. Instead, a deceleration in age curves, particularly beyond about 36 months, was observed in each sample. Some explanations and implications of the findings are discussed from normative and developmental viewpoints.
尽管有报告称学龄前儿童的年龄与话语长度之间存在线性关系，但在两个新的研究样本中，从2岁到5岁，该结果仅得到部分重复，一个样本为横断面设计，另一个为纵向设计。相反，在每个样本中都观察到年龄曲线的减速，特别是在大约36个月之后。从规范和发展的角度讨论了这些发现的一些解释和意义。
