In this second edition of the best-selling Second Language Research, Alison Mackey and Sue Gass continue to guide students step-by-step through conducting the second language research process with a clear and comprehensive overview of the core issues in second language research. Supported by a wealth of data examples from actual studies, the book examines questions of what is meant by research and what defines good research questions, covering such topics as basic research principles and data collection methods, designing a quantitative research study, and concluding and reporting research findings. The second edition includes a new chapter on mixed-methods, new time to think and time to do text boxes throughout, and updates to reflect the latest research and literature. Supplementary materials, including an extensive glossary and appendices of forms and documents that students can use in conducting their own studies, serve as useful reference tools, with suggestions on how to get research published reemphasizing the book's practical how-to approach. Second Language Research, Second Edition is the ideal resource for understanding the second language research process for graduate students in Second Language Acquisition and Applied Linguistics.