This volume presents the findings of a large-scale study of individual differences in spoken (and heard) language development during the school years. The goal of the study was to investigate the degree to which language abilities at school entry were stable over time and influential in the child’s overall success in important aspects of development. The methodology was a longitudinal study of over 600 children in the US Midwest during a 10-year period. The language skills of these children -- along with reading, academic, and psychosocial outcomes -- were measured. There was intentional oversampling of children with poor language ability without being associated with other developmental or sensory disorders. Furthermore, these children could be sub-grouped based on their nonverbal abilities, such that one group represents children with specific language impairment (SLI), and the other group with nonspecific language impairment (NLI) represents poor language along with depressed nonverbal abilities. Throughout the book, the authors consider whether these distinctions are supported by evidence obtained in this study and which aspects of development are impacted by poor language ability. Data are provided that allow conclusions to be made regarding the level of risk associated with different degrees of poor language and whether this risk should be viewed as lying on a continuum. The volume will appeal to researchers and professionals with an interest in children’s language development, particularly those working with children who have a range of language impairments. This includes Speech and Language Pathologists; Child Neuropsychologists; Clinical Psychologists working in Education, as well as Psycholinguists and Developmental Psychologists.

Do all children learn language in the same way? Is the apparent "fast" vs. "slow" language learning rate among children a reflection of the individual child′s approach to language acquisition? This volume explores the importance that individual differences have in acquiring language and challenges some of the widely held theories of linguistic development. Focusing on children ages one to three, the author describes characteristic differences in terms of vocabulary, grammatical, and phonological development, and considers whether distinctive "styles" of language development can be defined. In addition, the social and cognitive influences that can explain these differences are examined. The book concludes with a look at new language theories such as ecological, chaos, and connectionist approaches and considers what individual differences in development can tell us about the mechanisms of language development. Individual Differences in Language Development is invaluable for professionals and researchers in developmental psychology, family studies, education, psychology, and communication. "Cecilia M. Shore puts forward an alternative theory on differences in language development and offers an important message on the significance of context in children′s early language acquisition. The principal theme has significant implications for further research as well as practical implications for teacher trainers, teachers and parents." --Durante′s "Cecilia M. Shore writes in a warm and engaging style. . . . It serves her purpose well: to put across complex ideas in a clear and unforgettable form. . . . The content is right on target. Shore covers all the relevant issues in this complex area, and her review is right up to date." --Elizabeth Bates, Professor of Psychology and Professor of Cognitive Science, University of California, San Diego

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Individual Differences in Language Ability and Language Behavior is a collection of papers that discusses differences at the center of the study of language, specifically, on the various dimensions of linguistic ability and behavior along which individuals can differ from each other. Papers also review the development of techniques that measure these dimensions in relation to biological, psychological, and cultural parameters. Some papers review individual differences in language study in terms of different perspectives: that of a psychometrician's, of an individualistic's vantage point, and of a psycholinguistic's. Other papers discuss how each individual accesses, uses, and judges his language through fluency, biases, spatial principles, or a linguistic-phonetic mode. Several papers examine individual differences in language acquisition, such as "profile analysis," strategies in acquisition of sounds, second language learning, and duplication of adult language system. A group of papers addresses the biological aspects of language variation. These biological aspects include selective disorders of syntax (agrammatism), selective disorders of lexical retrieval (anomia), and cerebral lateralization effects in language processing. Certain papers explain individual differences in languages using sociolinguistic analysis. The collection is well suited for linguists, ethnologists, psychologists, and researchers whose works involve linguistics, learning, communications, and syntax.

Cognitive Individual Differences in Second Language Processing and Acquisition contains 14 chapters that focus on the role of cognitive IDs in L2 learning and processing. The book brings together theoretical and methodological approaches to the study of cognitive IDs, as well as empirical studies that investigate the mediating role of cognitive IDs in various linguistic domains. Chapters include contributions from researchers working within second language acquisition (SLA), psycholinguistics, and cognitive psychology, sharing a common interest in the application of cognitive IDs to their respective areas of study. The interdisciplinary understanding of cognitive IDs presented in this book makes the book of interest to a wide readership of graduate students, faculty members, and academic researchers in the fields of SLA, psycholinguistics, cognitive psychology, and education.

The Routledge Handbook of Second Language Acquisition and Individual Differences provides a thorough, in-depth discussion of the theory, research, and pedagogy pertaining to the role individual difference (ID) factors play in second language acquisition (SLA). It goes beyond the traditional repertoire and includes 32 chapters covering a full spectrum of topics on learners’ cognitive, conative, affective, and demographic/sociocultural variation. The volume examines IDs from two perspectives: one is how each ID variable is associated with learning behaviors, processes, and outcomes; the other is how each domain of SLA, such as vocabulary or reading, is affected by clusters of ID variables. The volume also includes a section on the common methods used in ID research, including data elicitation instruments such as surveys, interviews, and psychometric testing, as well as methods of data analysis such as structural equation modeling. The book is a must-read for any second language researcher or applied linguist interested in investigating the effects of IDs on language learning, and for any educator interested in taking account of learners’ individual differences to maximize the effects of second language instruction.

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.

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.

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.

The volume constitutes an attempt to capture the intricate relationship between individual learner differences and other variables which are of interest to theorists, researchers and practitioners representing such diverse branches of applied linguistics as psycholinguistics, sociolinguistics, pragmatics or language teaching methodology. It brings together contributions by Polish and international authors, including leading experts in the field, touching upon changing perspectives on individual variation, cognitive, affective and social variables, learning deficits as well as their impact on learning and teaching. It offers a multifaceted perspective on these problems and shows how theory and research can be translated into classroom practice.