DONG Jihua, LIU Ye, ZHENG Yongyan
Foreign Language World. 2025, 0(5): 50-59.
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This study adopted a systematic review approach and analyzed the research methods employed in empirical studies in the field of applied linguistics from the perspective of complex dynamic systems theory (CDST). It summarized and discussed the research designs, participants, timescales and data collection methods, as well as data analysis methods. The analysis showed that the domestic and foreign CDST studies were featured with trends toward interdisciplinarity, paradigm integration and methodological innovation, though they differed in participant selection and design implementation.Domestic studies were primarily based on small-scale quantitative designs, focusing mainly on second language development at the tertiary level, with relatively limited data collection and analytical methods; in contrast, international studies involved larger sample sizes, covered learners at different educational stages, and used more diverse methods of data collection and analysis. It is suggested that future research should enrich theoretical perspectives, adopt integrated designs, and employ interdisciplinary methods to further reveal the dynamics and complexities of complex systems.