Professor, School of Education, University of California, Irvine

Professor of World Languages Education and Applied Linguistics, Penn State University

Universidade Federal do Espírito Santo

Professor of Applied Linguistics, Razi University

Professor, Maggie & Dick Scarlett Chair in Speech-Language Pathology

Professor of Foreign Language Education, University of North Carolina at Charlotte

University of Strathclyde

Professor of Applied Linguistics, Majan University College

University of St. Augustine for Health Sciences

Lector/professor Windesheim Flevoland | Associate professor Vrije Universiteit Amsterdam