Luke Plonsky is Associate Professor of Applied Linguistics at Northern Arizona University, where he teaches courses in second language acquisition and research methods. Recent and forthcoming publications in these and other areas can be found in Applied Linguistics, Language Learning, and Modern Language Journal and in a number of other journals and edited volumes. He has also authored and edited several books including Second language acquisition: An introductory course (Gass, Behney, & Plonsky, 5th edition, under contract) and Advancing quantitative methods in second language research (Plonsky, 2015). Luke is Associate Editor of Studies in Second Language Acquisition, Managing Editor of Foreign Language Annals, and he serves on the editorial boards of Language Teaching and Learning and Individual Differences. He is also Co-Director of the IRIS repository for instruments in language learning and teaching (iris-database.org). Luke held previous faculty appointments at Georgetown University and University College London. He has also taught in Japan, The Netherlands, Spain, and Puerto Rico. Luke received his PhD in Second Language Studies from Michigan State University.