Thirty-five years of ISLA on form-focused instruction: A methodological synthesis

This article offers a methodological synthesis spanning 35 years of instructed second language acquisition research on the efficacy of form-focused instruction. Eighty-eight (quasi-) experimental studies were sampled from six academic journals: Applied Linguistics, Language Learning, Language Teaching Research, Modern Language Journal, Studies in Second Language Acquisition, and TESOL Quarterly. The focus of analysis was on five sets of...