Open science in second language acquisition research: The IRIS repository of research materials and data

Abstract

IRIS (iris-database.org) is a freely accessible repository for materials, data collection tools, and data used in research on second language learning and teaching. Launched in 2011, IRIS now holds nearly 4,000 files covering a vast spectrum of theoretical, methodological, and epistemological perspectives. The current chapter outlines the background, purpose, content, and usage of IRIS both generally and as within the context of the current volume. We also describe the place of IRIS as one of the primary vehicles driving the move toward open science practices and replication research in applied linguistics. We conclude by encouraging engagement with IRIS from research and practitioners alike.