中国英语学习者口语流利性动态发展研究

Dynamic Development of Oral Fluency of Chinese EFL Learners

本研究基于复杂动态系统理论,采用混合式研究设计,考察262名中国非英语专业大学生口语流利性发展轨迹的异质性及其影响因素,并进一步分析流利性子系统之间的历时关系。研究采用增长混合模型对数据进行分析,发现学习者语速流利性存在两个潜在子群,分别为语速—上升组和语速—陡升组;中断流利性存在两个潜在子群,分别为停顿—上升组和停顿—下降组;修正流利性存在两个潜在子群,分别为波动上升组、稳定组;其次,外语投入对口语流利性的潜在子群具有正向的预测作用。最后,研究进一步考察语速流利性和中断流利性之间的关系,发现二者相互支持,或相互竞争。研究对高校学生口语能力培养具有一定的教学启示。

This study,based on Complex Dynamic Systems Theory,employed a mixed-method research design to investigate the heterogeneity of oral fluency's developmental trajectory and its influencing factors in 262 Chinese non-English major college students.Additionally,it further explored the longitudinal relation between oral fluency subsystems.The research used growth mixture modeling to analyze the data.The results revealed that there were two latent subgroups in learners'speed fluency,namely,the speed-increasing group and the speed-dramatic increasing group.Two latent subgroups were identified in breakdown fluency:the pause-increasing group and the pause-decreasing group.Two latent subgroups were also identified in repair fluency:the fluctuating-increasing group and the stable group.Moreover,foreign language engagement had a positive predictive effect on latent groups of oral fluency.Finally,the study found cooperative and competitive relationships between speech fluency and breakdown fluency.This research provides some pedagogical insights into the development of oral proficiency among university students.