DENTON (UNT), Texas -- A University of North Texas education professor's research revealed new insight into a state program aimed at encouraging students to learn multiple languages. The Seal of Biliteracy is an award given to students who prove they have attained proficiency in two or more languages by the time they graduate high school.

The program was signed into Texas law in 2013, but it is voluntary for school districts. UNT assistant professor of bilingual and ESL education Ricardo Gonzalez-Carriedo and former doctoral student Alexandra Babino worked together to see how...