Understanding the way in which learners differ from one another is of fundamental concern to those involved in second-language acquisition, either as researchers or teachers. This account is the first to review at book length the important research into differences, considering matters such as aptitude, motivation, learner strategies, personality and interaction between learner characteristics and types of instruction.

Second language learners differ in how successfully they adapt to, and profit from, instruction. This book aims to show that adaptation to L2 instruction, and subsequent L2 learning, is a result of the interaction between learner characteristics and learning contexts. Describing and explaining these interactions is fundamentally important to theories of instructed SLA, and for effective L2 pedagogy. This collection is the first to explore this important issue in contemporary task-based, immersion, and communicative pedagogic settings. In the first section, leading experts in individual differences research describe recent advances in theories of intelligence, L2 aptitude, motivation, anxiety and emotion, and the relationship of native language abilities to L2 learning. In the second section, these theoretical insights are applied to empirical studies of individual differences-treatment interactions in classroom learning, experimental studies of the effects of focus on form and incidental learning, and studies of naturalistic versus instructed SLA.

The scope of individual learner differences is broad, yet there is no current, comprehensive, and unified volume that provides an overview of the considerable amount of research conducted on various language learner differences, until now.

This textbook takes a Complex Systems Theory approach to examine individual differences between learners and the potential impact of these variables on the process of acquiring a second language. The authors argue that individual variables cannot provide the complete picture, and that they must instead be understood as part of an interconnected and dynamic system of different factors in order to be useful in a language learning context. Written in an accessible style and suitable for final-year undergraduate and Masters-level students, the book includes clear definitions of key terms, discussion questions for classroom use, practical exercises and activities, and examples of real empirical studies that students and teachers can replicate in their own contexts. This textbook will be of interest to students taking TESOL and SLA courses and modules, as well as those on broader Applied Linguistics programmes.

Beginning from the conflict between individual learner differences and the institutionalized, often inflexible character of formal language instruction, Individual Learner Differences in SLA addresses the fact that despite this apparent conflict, ultimate success in learning a language is widespread. Starting with theoretically-based chapters, the book follows the thread of learner differences through sections devoted to learner autonomy; differentiated application of learning strategies; diagnostic studies of experienced learners’ management of the learning process; and reports on phonological attainment and development of language skills. Rather than providing an overview of all individual variables, the book reveals how some of them shape and affect the processes of language acquisition and use in particular settings.

Understanding the way in which learners differ from one another is of fundamental concern to those involved in second-language acquisition, either as researchers or teachers. This account is the first to review at book length the important research into differences, considering matters such as aptitude, motivation, learner strategies, personality and interaction between learner characteristics and types of instruction.