What Does Research Say?
There is a compounding body of quantitative, qualitative, longitudinal and cross-sectional research that supports the efficacy and effectiveness of bilingualism and multilingualism.
In the section below, we have organized some of the most poignant pieces of research from the field into four categories: cognitive development, academic achievement, social-emotional development and racial justice.
"Bilingualism makes the brain stronger. It is brain exercise."
Ellen Bialystok, Cognitive Neuroscientist
University of Toronto
"Study after study has reported that children in bilingual programs typically outperform their counterparts in all-English programs on tests of academic achievement in English."
Stephen Krashen, Linguist and Educational Researcher
University of Southern California
social emotional development
Children exposed to several languages are better at seeing through others’ eyes.
Research Article published in Psychology Science, 2015
Fan, Liberman, Keysar & Kinzler from the University of Chicago
"African American students of low income attending dual language classes were as much as two grades ahead of their peers not in dual language."
Drs. Thomas and Collier, George Mason University
ILA Leadership Literacy Brief, 2019