Studies examining seasonal variation in academic skills for children have focused on learning loss or stagnation during the summer, particularly for students from low-income or minoritized racial and ethnic backgrounds. In this study, we expand the literature to focus on another student population that may be susceptible to summer learning loss:…

This study investigated the role of early general knowledge in English reading growth of bilingual and monolingual students in the elementary years by using the Early Childhood Longitudinal Study, Kindergarten Class data set. The analyses of latent growth models showed that the estimated gap in English reading between students who started school…

Separating students into homogeneous groups is a common instructional practice used by elementary teachers during reading instruction. Although researchers have been studying the effects of homogeneous grouping for many decades, there is little consensus on whether grouping is an effective or equitable instructional practice. The central challenge…

This study uses data from the Early Childhood Longitudinal Study, Kindergarten Class of 1998-1999 (ECLS-K), to examine the texts assigned to eighth-grade students. By comparing student demographic information from the ECLS-K with demographic information from the texts, we examine adjustment of assignments to match students' backgrounds. In…

This study documents gaps in kindergarten and first-grade science achievement by family income and explores the degree to which such gaps can be accounted for by student race/ethnicity, out-of-school activities, parental education, and school fixed effects. In doing so, it expands on prior research that documents disparate rates of science…

The purpose of this study was to examine the relationship between school-based kindergarten transition practices and student achievement and executive functioning using recent, nationally representative data from the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11. The analysis employed 3-level hierarchical linear models and…

This study used ECLS-K 1998-1999 data to evaluate whether specific kindergarten teaching practices predicted school-year learning gains differently, depending on children's ethnicity, SES, and fall test scores. Exploratory factor analyses guided the creation of four literacy and five math instruction composites from teachers' reports of their…

Analyzing Early Childhood Longitudinal Survey--Kindergarten (ECLS-K) data, we examine how exposure to instructional practices influences math test scores at the end of kindergarten for children from different racial/ethnic and socioeconomic backgrounds, and for children with different levels of math skills at kindergarten entry. We also analyze…

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…

Multilevel modeling was used to investigate the relationship between poverty status, mathematics achievement gains, and behavioral engagement in learning over kindergarten. Data included information on 11,680 poor, low-income, and non-poor kindergartners from the Early Childhood Longitudinal Study-Kindergarten Cohort of 1998-1999 (ECLS-K). Results…

Policymakers and researchers continue to search for ways to improve K-12 education, which has led to an increased focus on teacher quality as an impetus for educational improvement. As such, current legislation under No Child Left Behind (NCLB) calls for highly qualified teachers in every classroom. But are the characteristics associated with…