Charlene Polio
Born	(1961-01-14)14 January 1961 (age 64) New Haven, Connecticut,The United States
Alma mater	University of Pennsylvania,UCLA
Known for	Second language writing
Children	Sara Heins
Scientific career
Fields	Second language acquisition Second language writing
Institutions	Michigan State University

Charlene Polio (born 1961) is anAmericanlinguist. She is currently a professor in the Department of Linguistics, Languages, and Cultures atMichigan State University,The United States.^[1] Her research focuses onsecond language acquisition with a special focus onsecond language writing.

Polio obtained herBachelor of Arts degree inLinguistics in 1983 and herMaster of Science degree inTESOL in 1984 at theUniversity of Pennsylvania. In 1992 she obtained herPhD inApplied linguistics at theUniversity of California, Los Angeles.^[2]

Polio was the co-editor ofThe Modern Language Journal.She is co-editor ofTESOL Quarterly along with Peter De Costa.^[3][4]

Since April 2018 she has been a member-at-large of theAmerican Association for Applied Linguistics.^[5]

Polio's research focuses on second language writing with a special focus onlanguage complexity. She is noted for her research synthesis on accuracy measures, published inLanguage Learning in 1997. She identified three different types of accuracy measures: (1) holistic scores, (2) error-free units, and (3) error counts.^[6]

• Mackey, A., & Polio, C. (Eds.) (2009).Multiple perspectives on interaction: second language research in honor of Susan M. Gass . London: Routledge.
• Polio, C. G., & Friedman, D. A. (2017).Understanding, Evaluating, and Conducting Second Language Writing Research. Routledge.ISBN 978-1138814684
• Zyzik, E. & Polio, C. (2017). Authentic materials myths: Applying second language research to classroom teaching. Ann Arbor: University of Michigan Press.

• Polio, C. G., & Duff P. A. (1994). Teachers' language use in university foreign language classrooms: A qualitative analysis of English and target language alternation.The Modern Language Journal,78(3), 313-326.[1]
• Duff P. A., & Polio C. G. (1990). How Much Foreign Language Is There in the Foreign Language Classroom?The Modern Language Journal,74(2), 154-166.[2]
• Polio, C. G. (1997). Measures of linguistic accuracy in second language writing research.Language Learning,47(1), 101-143.[3]

• Official website

• 1961 births
• Living people
• Applied linguists
• Second language writing
• Linguists from the United States
• American women linguists
• American academic journal editors

• Articles with short description
• Short description matches Wikidata
• Articles with hCards
• Official website not in Wikidata