The present study used the Early Childhood Longitudinal Study, Kindergarten Class of 2011 (ECLS-K:2011) to examine the bidirectionality and co-occurrence between math achievement and behavioral outcomes of upper elementary school students. We analyzed the cross-lagged relations across four groups of students who had different initiating statuses…

Consistent evidence points to the importance of the early childhood home environment for children's concurrent and subsequent development. Yet little is known about the long-term association between parental warmth in early childhood and children's social-emotional well-being in late childhood for children with and without disabilities. To explore…

Introduction: Peer victimization is the experience of being a target of intentional negative or aggressive actions by peers (Card & Hodges, 2008). Peer victimization at school is a growing concern because of its high prevalence rates (Finkelhor et al., 2013) and potential harmful impacts on student mental health and developmental outcomes…

We analyzed a population-representative cohort (N=13,611; M[subscript age] at kindergarten, first, and second grade = 67.5, 79.5, and 91.5 months, respectively) to identify kindergarten to second grade factors predictive of being bullies or victims during third to fifth grade. We did so by estimating a block recursive structural equation model…

Data from the Early Childhood Longitudinal Study (ECLS-K; N = 6,420; 67.9% White/non-Hispanic, 15% Hispanic, 13% Black/non-Hispanic, 2% Asian, 3% Native American/Alaska Native; 25% of parents' income <$25,000, 25% = $25,001 to $45,000, 29% = $45,001 to $75,000, 20% = $75,001 or greater) were used to test structural equation models in which…

Attention-deficit/hyperactivity disorder (ADHD) is the most common behavioral disorder among U.S. children. ADHD diagnoses have risen among children with both severe and mild behavioral problems, partly in response to mounting academic pressure. This study examines the consequences of ADHD diagnosis. Diagnosis can bring beneficial pharmacological…

We analyzed a population-based cohort of 11,780 U.S. children to identify risk and protective factors by kindergarten predictive of being frequently verbally, social, reputationally, or physically victimized during the upper elementary grades. We also stratified the analyses by biological sex. Kindergarten children displaying externalizing problem…

We analyzed a population-based cohort of 11,780 US children to identify risk and protective factors by kindergarten predictive of being frequently verbally, social, reputationally, or physically victimized during the upper elementary grades. We also stratified the analyses by biological sex. Kindergarten children displaying externalizing problem…

Approximately one in 10 children in the United States is diagnosed with attention-deficit/hyperactivity disorder (ADHD), a disability that can negatively affect academic achievement, yet relatively few children with ADHD are in special education. To better understand factors that determine which students with ADHD are in special education, we…

We analyzed two nationally representative, longitudinal data sets of U.S. children to identify risk factors for persistent mathematics difficulties (PMD). Results indicated that children from low socioeconomic households are at elevated risk of PMD at 48 and 60 months of age, as are children with cognitive delays, identified developmental delays…