Language aptitude research: From testing to theory and practice

In this introductory chapter, we first provide a brief overview of research paradigms of language aptitude testing and theory construction in the past six decades, summarizing the major achievements and innovations in research methodologies. Following this, we discuss the background and rationale of the current volume, highlighting the key contents of each chapter and evaluating their potential contributions to enhancing our understanding of language aptitude theory and practice. We conclude the introduction by calling upon scholars to work concertedly towards building an integrated language aptitude theory that will allow us to diagnose, predict, and explain the second language learning process and outcomes. Overall, the current volume calls for a paradigm shift of language aptitude research from its previous focus on aptitude testing to theory construction and practical applications. Keywords: Language aptitude, MLAT, Hi-LAB, LLAMA, the Staged Model, aptitude complexes, working memory, the P/E model