Modeling Systematicity and Individuality in Nonlinear Second Language Development: The Case of English Grammatical Morphemes
I would like to express my sincere gratitude to Dora Alexopoulou, who as my supervisor provided me with continuing and valuable guidance, extensive feedback, and constructive advice on my Ph.D. project that this article is based on. I would also like to thank John Williams and Detmar Meurers for their comments on my Ph.D. dissertation.
Abstract
This article introduces two sophisticated statistical modeling techniques that allow researchers to analyze systematicity, individual variation, and nonlinearity in second language (L2) development. Generalized linear mixed‐effects models can be used to quantify individual variation and examine systematic effects simultaneously, and generalized additive mixed models allow for the examination of systematicity, individuality, and nonlinearity within a single model. Based on a longitudinal learner corpus, this article illustrates the usefulness of these models in the context of L2 accuracy development of English grammatical morphemes. I discuss the strengths of each technique and the ways in which these techniques can benefit L2 acquisition research, further highlighting the importance of accounting for individual variation in modeling L2 development.
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Number of times cited: 7
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