TIRF, The International Research Foundation for English Language Education, is a nonprofit organization whose mission is to generate new knowledge about English language teaching and learning. TIRF applies research findings to practical language problems by working collaboratively with teachers, researchers, authors, publishers, philanthropic foundations, government agencies, and major companies. TIRF’s vision is that in the 21st century, personal and social value accrues to individuals who are proficient in English and in some additional language.