Luke Plonsky, PhD

Luke Plonsky Assistant Professor
Northern Arizona University
Applied Linguistics
Blg 23 Rm #315
Phone: 928-523-6265
Personal Page


  • Second language acquisition
  • Quantitative research methods
  • Research synthesis and meta-analysis
  • Second/foreign language pedagogy


  • Ph.D. 2011, Michigan State University -- Second Language Studies
  • M.A. 2004, Northern Arizona University -- Teaching English as a Second Language
  • B.A. 2002, Northern Arizona University -- Spanish

Current Editorial Appointments 

  • Managing Editor, Foreign Language Annals
  • Associate Editor, Studies in Second Language Acquisition
  • Co-Director, IRIS Database


  • Phakiti, A., De Costa, P. I., Plonsky, L., & Starfield, S. (under contract). The Palgrave handbook of applied linguistics research methodology. New York: Palgrave.
  • Loewen, S., & Plonsky, L. (in press). An A-Z of applied linguistics research methods. New York: Palgrave.
  • Plonsky, L. (Ed.) (2015). Advancing quantitative methods in second language research. New York: Routledge.
  • Gass, S., with Behney, J., & Plonsky, L. (2013). Second language acquisition: An introductory course (4th ed.). New York: Routledge.
  • Plonsky, L., & Schierloh, M. (Eds.) (2011). Selected proceedings of the 2009 Second Language Research Forum: Diverse contributions to SLA. Somerville, MA: Cascadilla Proceedings Project.

Articles and Book Chapters (2010-present) 

  • Plonsky, L., & Derrick. D. J. (in press). A meta-analysis of reliability coefficients in second language research. Modern Language Journal.
  • Plonsky, L., & Ziegler, N. (in press). The CALL-SLA interface: Insights from a second-order synthesis. Language Learning & Technology.
  • Plonsky, L. (in press). Quantitative research methods in instructed SLA. In S. Loewen & M. Sato (Eds.), The Routledge handbook of instructed second language acquisition. New York, NY: Routledge.
  • Marsden, E., Mackey, A., & Plonsky, L. (in press). Breadth and depth: The IRIS repository. In A. Mackey & E. Marsden (Eds.), Advancing methodology and practice: The IRIS repository of instruments for research into second languages. New York, NY: Routledge.
  • Asención-Delaney, Y., Collentine, J. G., Collentine, K., Colmenares, J., & Plonsky, L. (in press). Potencial de la enseñanza del vocabulario basada en corpus: Optimismo con precaución. [On the potenial of corpus-based vocabulary instruction: Cautious optimism]. Journal of Spanish Language Teaching.
  • Mizumoto, A., & Plonsky, L. (in press). R as a lingua franca: Advantages of using R for quantitative research in applied linguistics. Applied Linguistics.
  • Nurmukhamedov, U., & Plonsky, L. (in press). Reflective and effective teaching of vocabulary. In M. Zeraatpishe, A. Faravani, H. R. Kargozari, & M. Azarnoosh (Eds.), Issues in applying SLA theories toward creative teaching. Rotterdam, The Netherlands: Sense Publishers.
  • Derrick, D., Paquot, M., & Plonsky, L. (in press). Interlingual vs. Intralingual errors. In J. Liontas (Ed.), TESOL Encyclopedia of English Language Teaching. Malden, MA: Wiley 
  • Plonsky, L., Egbert, J., & LaFlair, G. T. (in press). Bootstrapping in applied linguistics: Assessing its potential using shared data. Applied Linguistics.
  • Egbert, J., & Plonsky, L. (2015). Success in the abstract: Exploring linguistic and stylistic predictors of conference abstract ratings. Corpora, 10, 291-313.
  • Plonsky, L., Oswald, F. L. (2015). Meta-analyzing second language research. In L. Plonsky (Ed.), Advancing quantitative methods in second language research (pp. 106-128). New York: Routledge. [Adapted from Plonsky, L., & Oswald, F. L. (2012). How to do a meta-analysis. In A. Mackey & S. M. Gass (Eds.), Research methods in second language acquisition: A practical guide (pp. 275-295). London: Basil Blackwell.]
  • LaFlair, G. T., Egbert, J., & Plonsky, L. (2015). A practical guide to bootstrapping descriptive statistics, correlations, t tests, and ANOVAs. In L. Plonsky (Ed.), Advancing quantitative methods in second language research (pp. 46-77). New York: Routledge. 
  • Plonsky, L. (2015). Introduction. In L. Plonsky (Ed.), Advancing quantitative methods in second language research (pp. 3-8). New York: Routledge.
  • Plonsky, L. (2015). Statistical power, p values, descriptive statistics, and effect sizes: A "back-to-basics" approach to advancing quantitative methods in L2 research. In L. Plonsky (Ed.), Advancing quantitative methods in second language research (pp. 23-45). New York: Routledge.
  • Lee, J., Jang, J,. & Plonsky, L. (2015). The effectiveness of second language pronunciation instruction: A meta-analysis. Applied Linguistics, 36, 345-366.
  • Plonsky, L., & Gonulal, T. (2015). Methodological synthesis in quantitative L2 research: A review of reviews and a case study of exploratory factor analysis. Language Learning, 65, Supp. 1, 9-36.
  • Larson-Hall, J., & Plonsky, L. (2015). Reporting and interpreting quantitative research findings: What gets reported and recommendations for the field. Language Learning, 65, Supp. 1, 127-159.
  • Norris, J. M., Plonsky, L., Ross, S. J., & Schoonen, R. (2015). Guidelines for reporting quantitative methods and results in primary research. Language Learning, 65, 470-476.
  • Plonsky, L. (2015). Quantitative considerations for improving replicability in CALL and applied linguistics. CALICO Journal, 32, 232-244.
  • Plonsky, L., & Brown, D. (2015). Domain definition and search techniques in meta-analyses of L2 research (Or why 18 meta-analyses of feedback have different results). Second Language Research, 31, 267-278.
  • Plonsky, L., & Oswald, F. L. (2014). How big is 'big'? Interpreting effect sizes in L2 research. Language Learning, 64, 878-912.
  • Plonsky, L., & Gurzynski-Weiss, L. (2014). Research methods. In C. Fäcke (Ed.) Manual of language acquisition (pp. 31-49). Berlin: De Gruyter.
  • Plonsky, L. (2014). Study quality in quantitative L2 research (1990-2010): A methodological synthesis and call for reform. Modern Language Journal, 85, 450-470.
  • Plonsky, L. (2013). Study quality in SLA: An assessment of designs, analyses, and reporting practices in quantitative L2 research. Studies in Second Language Acquisition, 35, 655-687.
  • Plonsky, L., & Loewen, S. (2013). Focus on form and vocabulary acquisition in the Spanish L2 classroom. Language, Interaction, and Acquisition, 4, 1-24.
  • Clark. T. S., Crawford, W. J., & Plonsky, L. (2013). Applying corpus linguistics to management research: The case of professionalism. International Journal of Business Research, 13, 65-78.
  • Plonsky, L. (2012). Replication, meta-analysis, and generalizability. In G. Porte (Ed.), Replication research in applied linguistics (pp. 116-132). New York: Cambridge University Press. 
  • Plonsky, L. (2012). Effect size. In P. Robinson (Ed.), The Routledge encyclopedia of second language acquisition (pp. 200-202). New York: Routledge.
  • Plonsky, L., & Oswald, F. L. (2012). Meta-analysis. In P. Robinson (Ed.), The Routledge encyclopedia of second language acquisition (pp. 420-423). New York: Routledge.
  • Plonsky, L., & Oswald, F. L. (2012). How to do a meta-analysis. In A. Mackey & S. M. Gass (Eds.), Research methods in second language acquisition: A practical guide (pp. 275-295). London: Basil Blackwell.
  • Plonsky, L. (2011). The effectiveness of second language strategy instruction: A meta-analysis. Language Learning, 61, 993-1038.
  • Plonsky, L., & Gass, S. (2011). Quantitative research methods, study quality, and outcomes: The case of interaction research. Language Learning, 61, 325-366.
    [Winner of the Language Learning Outstanding Article of the Year, 2011]
    [Winner of the ACTL-MLJ Paul Pimsleur Award for Research in Foreign Language Education]
  • Oswald, F. L., & Plonsky, L. (2010). Meta-analysis in second language research: Choices and challenges. Annual Review of Applied Linguistics, 30, 85-110.