Research Findings: Using two groups of dual language learners (DLLs), the current study examined links between two developmental constructs closely linked to school readiness: the home language environment (HLE) and executive function (EF). In a sample of 90 children (age range = 38-70 months, 59% girls) from either Mexican American (MA, N = 46)…

Purpose: There is conflicting evidence regarding effects of bilingualism on inhibition, and the mechanisms that might underlie the effects remain unclear. A prominent account views additional demands on structural language use in bilinguals as being at the root of bilingual effects on inhibition. In this study, we tested the novel hypothesis that…

Research has yet to reach a definitive consensus on whether or how bilingualism confers benefits on Executive Function (EF): numerous studies show an EF advantage for bilinguals over monolinguals, while others indicate no significant differences. These inconsistencies demonstrate that the mechanisms behind a potential bilingualism-to-EF…

Research Findings: This study examined the heterogeneity in Spanish-speaking children's (N = 117; M age = 53 months; SD = 5 months; 57% boys) vocabulary and letter-word skills in English and Spanish after one year of preschool and the extent to which early self-regulation abilities (i.e., executive function and effortful control) were associated…

The purpose of the 2015-2016 NC Pre-Kindergarten (NC Pre-K) Evaluation study was to examine the long-term effects of participation in NC Pre-K at the end of kindergarten. Two groups of children were compared--those who attended NC Pre-K (treatment) and those who had not attended NC Pre-K (comparison). Propensity score matching (PSM) was used to…

The purpose of the 2015-2016 NC Pre-Kindergarten (NC Pre-K) Evaluation study was to examine the long-term effects of participation in NC Pre-K at the end of kindergarten. Two groups of children were compared--those who attended NC Pre-K (treatment) and those who had not attended NC Pre-K (comparison). Propensity score matching (PSM) was used to…

Empowering Families was focused on infusing the Providence Public School District (PPSD) elementary schools with an intervention centered on the Mind in the Making (MITM) training, designed to build the capacity of families, teachers, and schools to understand how children's executive function impacts social-emotional and cognitive growth. Data…

In recent decades, the share of ethnically and linguistically diverse children enrolled in schools in the United States has exponentially increased. Despite the growing representation of ethnic minority and dual language learner (DLL) children, there is persistent evidence of early vocabulary gaps between low-income and DLL children and their…

Previous research has documented advantages and disadvantages of early bilinguals, defined as learning a 2nd language by school age and using both languages since that time. Relative to monolinguals, early bilinguals manifest deficits in lexical access but benefits in executive function. We investigated whether becoming bilingual "after"…

A total of 104 six-year-old children belonging to 4 groups (English monolinguals, Chinese-English bilinguals, French-English bilinguals, Spanish-English bilinguals) were compared on 3 verbal tasks and 1 nonverbal executive control task to examine the generality of the bilingual effects on development. Bilingual groups differed in degree of…