He specializes in second language acquisition and L2 classroom interaction. Shawn Loewen is an assistant professor in the Second Language Studies program at Michigan State University. He is also editor of the journal Language Teaching Research.LoewenShawn: His most recent is The Study of Second Language Acquisition 2nd Edition (Oxford University Press, 2008). His publications includes articles and books on second language acquisition, language teaching and teacher education. Rod Ellis is Professor of Applied Language Studies in the University of Auckland and a visiting Professor at Shanghai International Studies University.