This study used data from Early Childhood Longitudinal Study -- Birth Cohort (ECLS-B) and examined the relations between children's Head Start exposure and their early academic skills (i.e., language, literacy, and math skills) in the United States. Two groups of children who shared similar socio-economic status and disability status but received…

Low-income children, particularly those with special needs, may have limited access to high-quality early care experiences. Childcare subsidies are intended to increase families' access to quality care, but little is known about subsidy use by children with special needs. Using a nationally representative sample of 4,000 young children who…

Researchers have become increasingly interested in programs' main and interaction effects of two variables (A and B, e.g., two treatment variables or one treatment variable and one moderator) on outcomes. A challenge for estimating main and interaction effects is to eliminate selection bias across A-by-B groups. I introduce Rubin's causal model to…

This study examines whether the physical location of Pre-K programs--whether in elementary school buildings or stand-alone centers--leads to differences in student outcomes in elementary school. Over the past several decades, public investment in Pre-K programming has burgeoned. According to the National Institute for Early Education Research, 32…

Despite the vast body of research examining the relationship between full-day kindergarten attendance and children's outcomes, little is known about the effects of full-day kindergarten on children with disabilities (i.e., students with 1 of the 13 categories of disabilities recognized under federal law). This study fills this research void by…

We sought to identify which kindergarten children are simultaneously at risk of moderate or severe symptomatology in both attention-deficit/hyperactivity disorder (ADHD) and conduct disorder (CD) as adolescents. These risk factor estimates have not been previously available. We conducted multinomial logistic regression analyses of multiinformant…

The federal child-care subsidy program represents one of the government's largest investments in early care and education. Using data from the nationally representative Early Childhood Longitudinal Study-Birth Cohort, this study examines associations, among subsidy-eligible families, between child-care subsidy receipt when children are 4 years old…

The authors examined science achievement growth at Grades 3, 5, and 8 and parent school involvement at the same time points using the Early Childhood Longitudinal Study-Kindergarten Class of 1998-1999. Data were analyzed using cross-classified multilevel latent growth curve modeling with time invariant and varying covariates. School-based…

Recent federal, state, and district policies that have mainstreamed English language learner (ELL) students into general, English-only elementary school classrooms have raised questions among educational stakeholders about the widespread effects of these policies. Most research has focused on the outcomes of ELL students; almost nothing is known…

Family educational involvement is consistently and positively associated with child achievement, but little work has closely examined the involvement practices of families of color, particularly immigrant families. Utilizing data from the Early Childhood Longitudinal Study-Kindergarten Cohort 1998-99 (ECLS-K), this study used Hierarchical Linear…

Over the past decade, several state and federal policies have directed schools to mainstream English Language Learner (ELL) students into English-only instruction classrooms. While there is mixed evidence on the effects of these immersion policies on the ELL students, research examining potential peer effects on their non-ELL classmates is…

This study investigated the extent to which student performance and teacher perception of student performance affect placement in eighth-grade mathematics classes for students with disabilities. Authors used the Early Childhood Longitudinal Study--Kindergarten dataset to investigate how each of the following factors predicted placement in…

The purpose of this study is to examine the role of center-based care and children's school readiness in predicting their first and third grade reading and mathematics achievement. Predictions derived from an opportunity-propensity theoretical framework applied to data from the Early Childhood Longitudinal Study-Kindergarten Class of 1998-99. …

This study explores the impacts of selected early science experiences in kindergarten (frequency and duration of teachers' teaching of science, availability of sand/water table and science areas, and children's participation in cooking and science equipment activities) on children's science achievement in kindergarten and third grade using data…

The authors investigated whether age at kindergarten entry was associated with early literacy achievement gaps and if these gaps persisted over time. Using the kindergarten age eligibility cutoff date, they created 2 groups of students who represented the oldest and youngest children in a cohort of students in high-poverty, low-performing schools.…