The purpose of this paper is to showcase new research that seeks to provide guidance on the heterogeneity of treatment effects by utilizing the variance of demographic differences in state assessments. This study is focused on a simple randomized block design where students are nested within schools, and within each school students are randomized…

Prior research and anecdotal evidence from educators suggest that classroom peers play a meaningful role in how students learn. However, the literature has failed to consider the dynamic and context-dependent nature of classroom peer influence. Developmental psychology theories suggest that peer influence will increase and family influence will…

This study examined mathematics achievement growth of students without disabilities (SWoD) and students with learning disabilities (LD) and tested whether growth and LD status interacted with student demographic characteristics. Growth was estimated in a statewide sample of 79,554 students over Grades 3 to 7. The LD group was significantly lower…

The purpose of this dissertation was to determine the effects of repeated reading on readers identified as below grade in sixth and seventh grade. The study was set in a rural middle school located in the foothills of North Carolina. Students selected for the study were identified utilizing Lexile levels to identify them as below grade level for…

New analytical tools have facilitated the exploration of the trajectories of alcohol use; however, there are a limited number of studies that explore early adolescence. A sample of 5,903 youths followed from sixth through eighth grade was used to (1) examine the trajectories of alcohol use and (2) determine the degree to which common correlates…

Northwest Evaluation Association™ (NWEA™) is committed to providing partners with useful tools to help make inferences from the Measures of Academic Progress® (MAP®) interim assessment scores. Recently, NWEA completed a concordance study to connect the scales of the North Carolina End-of-Grade (EOG) English language arts (ELA) and math with those…

Exit rates from Limited English Proficiency (LEP) for students who enter the Wake County Public School System (WCPSS) as LEP students vary by when students enter WCPSS (based on students entering in kindergarten, grade 6 or 7, or grade 9). Based on our 2008-09 cohorts, students entering in grades 6 or 7 were most likely to exit LEP status after…

Many middle school students are not achieving the Adequate Yearly Progress (AYP) at individual schools in North Carolina. A consequence of continual failure to reach AYP goals is the withdrawal of Title 1 funding. Since federal funds are an integral part of nearly half of the public schools in North Carolina, it is imperative that students improve…

Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…

Unlike in elementary school, high-school teacher effects may be confounded with both selection to tracks and unobserved track-level treatments. I document sizable confounding track effects, and show that traditional tests for the existence of teacher effects are likely biased. After accounting for these biases, high-school algebra and English…

Extending the school day through programs that will supplement core courses, such as offering intensive, after-school tutoring or small-group study sessions in reading and mathematics, is one method districts use to boost school performance and narrow educational achievement gaps between students of different racial and economic backgrounds (Redd…

The purpose of this study was to analyze the effects of class size and student achievement in mathematics and reading. The study focused on grades 6 through 8 and used the results of the North Carolina EOG tests in mathematics and reading for the academic year 2006-2007. This study examined the effects of class size and student achievement in…

Dropping out of school has been presented as a serious problem affecting gifted students, with some authors suggesting that 20% or more of dropouts could be gifted (e.g., Rimm, 1995; Robertson, 1991). Longitudinal data from North Carolina were used to investigate high-school dropout rates among gifted students (N = 7916) who had participated in a…

The opportunity and right to obtain a free public education provides the opportunity for all Americans to achieve success socially, financially, and professionally. The public education system has endured decades of changes as it attempts to address social, cultural, and academic issues that arise as the nation evolves. The public education system…