He has taught ESL/EFL and trained English teachers in Arizona, Hawaii, Thailand, Japan, and Chile. His research interests include second language acquisition, second language writing for academic purposes, meta-analysis and research synthesis, and second language teaching methodology. He has published his research in TESOL Quarterly, the Journal of Second Language Writing, Second Language Research, and Language Teaching Research. He has also served as a reviewer for Language Learning, TESOL Quarterly, the Modern Language Journal, Language Teaching Research, and System, and is excited to join as as a coeditor for the new MITESOL Journal.