Does Early Elementary Dual Language Instruction Deliver as Promised?

Abstract

Utilizing Utah state data, the aim of this study is to examine the association between language program types programs (dual language programs [DLI], sheltered instruction [SEI], and English as a second language [ESL]) since first grade and third-grade basic literacy skills of Spanish-speaking English learners (ELs) in the United States. We employ propensity score matching (PSM) to generate matched samples using child and family factors known to be associated with children’s early literacy: child sex, immigrant status, unhoused status, special education status, child met Dynamic Indicators of Basic Early Literacy Skills (DIBELS) benchmark at start of first grade, as well as family income and parental language (DLI & ESL, n = 380; DLI & SEI, n = 380; SEI & ESL, n = 550). Regression models comparing early literacy outcomes for each matched group indicate small trends, based on effect sizes, in favor of DLI programs when compared to other program types, although differences were not statistically significant. Implications for policy and practice related bilingual education are addressed.