Dimensions of L2 Performance and Proficiency : Complexity, Accuracy and Fluency in SLA.

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This chapter presents the results of a study on interlanguage variation. The production of four L2 learners of Italian, tested four times at yearly intervals while engaged in four oral tasks, is compared to that of two native speakers, and analysed with quantitative CAF measures. Thus, time, task type, nativeness, as well as group vs. individual scores are the independent variables and complexity, accuracy, and fluency are the dependent ones. Results show how both L2 learners and native speakers display situational variation, but with clear differences amongst the two groups. Longitudinally, a.

Includes bibliographical references and index.

Complexity, accuracy and fluency: Definitions, measurement and research / Alex Housen, Folkert Kuiken and Ineke Vedder -- Defining and operationalising L2 complexity / Bram Bulté and Alex Housen -- Complexity, Accuracy and Fluency from the perspective of psycholinguistic Second Language Acquisition research / Richard J. Towell -- Complexity, accuracy and fluency*: The role played by formulaic sequences in early interlanguage development / Florence Myles -- The growth of complexity and accuracy in L2 French: Past observations and recent applications of developmental stages / Malin Ågren, Jonas Granfeldt and Suzanne Schlyter -- The effect of task complexity on functional adequacy, fluency and lexical diversity in speaking performances of native and non-native speakers / Nivja de Jong, Margarita P. Steinel, Arjen F. Florijn, Rob Schoonen and Jan H. Hulstijn -- Syntactic complexity, lexical variation and accuracy as a function of task complexity and proficiency level in L2 writing and speaking / Folkert Kuiken and Ineke Vedder -- The effects of cognitive task complexity on L2 oral production / Mayya Levkina and Roger Gilabert -- Complexity, accuracy, fluency and lexis in task-based performance: A synthesis of the Ealing research / Peter Skehan and Pauline Foster -- Measuring and perceiving changes in oral complexity, accuracy and fluency: Examining instructed learners' short-term gains / Alan Paul Tonkyn -- The development of complexity, accuracy and fluency in the written production of L2 French / Cecilia Gunnarsson -- A longitudinal study of complexity, accuracy and fluency variation in second language development / Stefania Ferraris -- Epilogue / Alex Housen, Folkert Kuiken and Ineke Vedder.

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