Susan Gass is University Distinguished Professor Emerita in the Second Language Studies Program at Michigan State University. She has published widely in the field of Second Language Acquisition on a range of topics including input/interaction, language transfer, and research methodology. She has published three recent books on research methodology: Second Language Research: Methodology and Design (3^rd edition, with Alison Mackey), Using Judgments in Second Language Acquisition Research (with Patti Spinner), and Stimulated Recall Methodology in Applied Linguistics and L2 Research (with Alison Mackey). She is the winner of numerous local, national, and international awards and has served as President of the American Association for Applied Linguistics and the International Association of Applied Linguistics. For nearly 35 years, she had numerous roles with Studies in Second Language Acquisition, most recently as Co-Editor and Editor from 2015-2022.

Gregory R. Hancock is Professor and Distinguished Scholar-Teacher, and long-time Director of the Measurement, Statistics, and Evaluation graduate program at the University of Maryland. His research interests include structural equation modeling and latent growth models, power, reliability, and the use of latent variables in experimental design. He serves on the editorial boards of a number of leading social science methodological journals, is a Fellow in several national associations, and has taught over 200 methodological workshops in the United States, Canada, and abroad. He is also co-host of the popular quantitative methods podcast Quantitude.

Daniel R. Isbell (PhD, Michigan State University) is an Assistant Professor in the Department of Second Language Studies at the University of Hawaiʻi at Mānoa where he teaches courses in language testing and quantitative research methods. He has previously investigated the prevalence of misconduct and questionable research practices among applied linguists and is current co-editing a special issue on research ethics to appear in the journal Research Methods in Applied Linguistics.