This manual provides guidance and documentation for users of the longitudinal kindergarten-second grade (K-2) data file of the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011). It mainly provides information specific to the second-grade rounds of data collection. Users should refer to the "Early Childhood…

This manual provides guidance and documentation for users of the longitudinal kindergarten-fourth grade (K-4) public-use data file of the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011), which includes the first release of the public version of the third-grade data. This manual mainly provides information specific…

Many people have worried about possible adverse effects of high-stakes testing on socioemotional outcomes. This article uses a difference-in-differences approach to investigate the effects of the introduction of high-stakes testing via the No Child Left Behind Act on socioemotional outcomes. Data are from the Early Childhood Longitudinal…

Research Findings: Researchers and policymakers emphasize that early childhood is a critical developmental stage with the potential to impact academic and social-emotional outcomes (G. Conti & J. J. Heckman, 2012; J. J. Heckman, 2012; R. Murnane, I. Sawhill, & C. Snow, 2012). Although there is substantial evidence that children's early…

Using data from the Early Childhood Longitudinal Survey--Birth cohort ("N" = 6,450), the present study hypothesized that 48-month-old children of divorced mothers would score lower on emerging literacy than the children of formerly cohabiting mothers, compared with the children of mothers in stable marriage. The children of mothers who…

Although evidence of negative associations between early literacy development and children's behavior problems exists, the field still lacks an understanding of the complicated links between these two areas. Children's gender has often not been included in much of the extant research as a potential moderating variable, yet gender differences may…

There are few areas of school organization that reflect more dissatisfaction than how to structure the education of adolescents in the middle grades. This study uses multilevel models on nationally representative data provided by the Early Childhood Longitudinal Study to investigate the relationship between schools' middle-level grade span and…

The role of depression in nonresident fathers' involvement with their infant children is poorly understood. A three-factor model of father involvement was evaluated, and its association with parental relationship quality and depressive symptoms in both parents were tested. Data on 569 families from the Early Childhood Longitudinal Study were used.…

Black-white test score gaps form in early childhood and widen over elementary school. Sociologists have debated the roles that socioeconomic status (SES) and school quality play in explaining these patterns. In this study, I replicate and extend past research using new nationally representative data from the Early Childhood Longitudinal…

This study investigated the effects of intrinsic motivation, perceived competence, classroom engagement and extrinsic motivation on reading development among youth. Using a nationally representative sample of students in the US, the researchers followed students longitudinally from fifth to eighth grade. Reading achievement was measured using…

Research Findings: Home literacy involvement (e.g., shared book reading) has been linked to enhanced cognitive development and school readiness during early childhood. Furthermore, precursory reading and math skills are key predictors of high school achievement. This study examined prospective relations between Mexican mothers' English…

This paper exploits a source of variation in the eligibility for federal nutrition programs to identify the program effects on food insecurity. Children are eligible for the WIC [Women, Infants and Children] program until the day before they turn 61 months old. The result is an age discontinuity in program participation at the 61-month cutoff.…

The authors, in a nonexperimental randomized study, used national data from the Early Childhood Longitudinal Study-Kindergarten Cohort (ECLS-K) to examine present instructional practices for Grade 5 mathematics classrooms and its impact on achievement for White non-Hispanic non-English language learners (ELLs), Hispanic non-ELLs, and Hispanic…

The current study examines the social and behavioral development of school-age children with different histories of overweight onset. Eight thousand children from the Early Childhood Longitudinal Study-Kindergarten Cohort (ECLS-K) participated. Three groups of children were identified for analysis: (1) those who were persistently overweight from…

This paper will review several important constructs in the area of social and emotional development of children in grades 2-5. The importance of social and emotional development has become increasingly evident in light of new research on the brain and the development of programs to prevent social and behavioral disorders in youth. This review will…