A graduate of Harvard University, Bailey's research focuses primarily on language and cognitive development, acquisition of literacy, bilingualism, atypical language development, narrative analysis and research design and methods. She is coauthor of the new IPT assessment of English language development at the prekindergarten-kindergarten level, editor and contributing author to The Language Demands of School: Putting Academic English to the Test (Yale University Press, 2007),[3] and coeditor and author (with Allyssa McCabe and Gigliana Melzi) of Spanish-Language Narration and Literacy Development (Cambridge University Press).[4] Bailey also serves on the advisory boards of numerous national organizations and states, as well as commercial publishers developing language and literacy assessments for English Language Learners.