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Session Type: Symposium
This session brings together four papers which analyze data from randomized trials of vocabulary instructional interventions for second-language learners. We include studies across preschool to middle school, using a range of analytic techniques including mixed models with individual-by-item interactions, growth models, and analyses of differential item functioning with competing estimates of performance ability. Each paper provides a perspective on which kinds of lexical skills are challenging for second-language learners across the proficiency continuum and provides concrete suggestions for instruction and assessment of L2 vocabulary.
Identifying Leverage Points Beyond Cognates for Spanish-English Bilingual Adolescents: Effects of an Academic Vocabulary and Morphology Intervention - Amy C. Crosson, The Pennsylvania State University; Margaret G. McKeown, University of Pittsburgh; Pui-Wa Lei, The Pennsylvania State University; Xinyue Li, The Pennsylvania State University; Kelly P. Robbins; Kathleen J. Brown, University of Utah
Vocabulary Development of Young Uyghur Children: Exploring Trajectories of Receptive and Expressive Vocabulary - Si Chen, Harvard University; Joshua Fahey Lawrence, University of Oslo; Jing Zhou, East China Normal University; Lanbin Min, Xinjiang Normal University; Catherine E. Snow, Harvard University
English Learners' Acquisition of Academic Vocabulary: Instruction Matters, but So Do Word Characteristics - Diane L. August, American Institutes for Research; Lauren Artzi, American Institutes for Research; Christopher Daniel Barr, University of Houston; Paola Uccelli, Harvard University
Differential Performance on Academic Vocabulary Assessments for English Language Learners: Exploring Models and Tested Words to Understand Word Learning Challenges - Paulina Kulesz, University of Houston Times; Autumn McIlraith, University of Houston; Joshua Fahey Lawrence, University of Oslo; David J. Francis, University of Houston