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One of the controversies surrounding charter schools is whether these schools may either “cream skim” high-performing students from traditional public schools or “pushout” low-achieving students or students with discipline histories, leaving traditional public schools to educate the most challenging students. In this study, we use longitudinal statewide data from Tennessee and North Carolina and linear probability models to examine whether there is evidence consistent with these selective enrollment practices. Because school choice programs managed by districts (magnet and open enrollment programs) have a similar ability to cream skim and pushout students, we also examine these outcomes for these programs. Across the various school choice programs, magnet schools have the most evidence of cream skimming, but this might be expected as they often have selective admissions. For charter schools, we do not find patterns in the data consistent with cream skimming, but we do find evidence consistent with pushout behaviors based on discipline records. Finally, some have raised concerns that students may be pushed out near accountability test dates, but our results suggest no evidence consistent with this claim.

Using a dataset that includes over 17 million students from across all 50 states, we estimate the causal impact of making structural transitions into middle school (in grades 4, 5, 6, or 7) on student math and reading achievement trajectories. This dataset provides an ideal opportunity to engage in the valuable scientific practice of conducting replication studies. Prior research on the impacts of middle school transitions is of high quality and rests on a strong causal warrant, but the study settings vary greatly and use data from a prior decade. We conduct a replication (i.e., using the same methods on different data) using larger, broader, and more recent data. We extend prior analyses in ways that may further strengthen the causal warrant. Finally, we explore heterogeneity of effects across subgroups and states, which may help reconcile differences in the magnitude of estimated effects across studies.

The Equality of Educational Opportunity Study (1966)—the Coleman Report—lodged a key takeaway in the minds of educators, researchers, and parents: Schools do not strongly shape students’ achievement outcomes. This finding has been influential to the field; however, Coleman himself suggested that—had longitudinal data been available to him—decomposing the variance in students’ growth rates rather than their levels of achievement would have provided a clearer insight into school effects. Inspired by an intriguing finding from an earlier study conducted in 1988 by Bryk and Raudenbush, we take up Coleman’s suggestion using data provided by NWEA, which has administered over 200 million vertically scaled assessments across all 50 states since 2008. We replicated Bryk and Raudenbush’s surprising finding that most of the variation in student learning rates lies between rather than within schools. For students moving from Grades 1 through 5, we found 75% (math) to 80% (English language arts) of the variance in achievement rates is at the school level. We find similar results in preliminary analyses of data from the Early Childhood Longitudinal Study-Kindergarten Class 1998-99 (ECLS-K:99). These results are intriguing because they call into question one of the dominant narratives about the extent to which schools shape students’ achievement; however, more research is needed. Our goal is to invite other scholars to conduct similar analyses in other data contexts. We delineate four key dimensions along which results need to be further probed, first and foremost with an eye toward the role of test score scaling practices, which may be of central importance.

Summer learning loss (SLL) is a familiar and much-studied phenomenon, yet new concerns that measurement artifacts may have distorted canonical SLL findings create a need to revisit basic research on SLL. Though race/ethnicity and socioeconomic status only account for about 4% of the variance in SLL, nearly all prior work focuses on these factors. We zoom out to the full spread of differential SLL and its contribution to students’ positions in the eighth-grade achievement distribution. Using a large, longitudinal NWEA data set, we document dramatic variability in SLL. While some students actually maintain their school-year learning rate, others lose nearly all their school-year progress. Moreover, decrements are not randomly distributed—52% of students lose ground in all 5 consecutive years (English language arts).

How should schools assign students to more rigorous math courses so as best to help their academic outcomes? We identify several hundred California middle schools that used 7th-grade test scores to place students into 8th-grade algebra courses and use a regression discontinuity design to estimate average impacts and heterogeneity across schools. Enrolling in 8th-grade algebra boosts students’ enrollment in advanced math in ninth grade by 30 percentage points and eleventh grade by 16 percentage points. Math scores in tenth grade rise by 0.05 standard deviations. Women, students of color, and English-language learners benefit disproportionately from placement into early algebra. Importantly, the benefits of 8th-grade algebra are substantially larger in schools that set their eligibility threshold higher in the baseline achievement distribution. This suggests a potential tradeoff between increased access and rates of subsequent math success.

Schools utilize an array of strategies to match curricula and instruction to students’ heterogeneous skills. While generations of scholars have debated “tracking” and its consequences, the literature fails to account for diversity of school-level sorting practices. In this paper we draw upon the work of Sorenson (1970) to articulate and develop empirical measures of five distinct dimensions of school cross-classroom tracking systems: (1) the degree of course differentiation, (2) the extent to which sorting practices generate skills-homogeneous classrooms, (3) the rate at which students enroll in advanced courses, (4) the extent to which students move between tracks over time, and (5) the relation between track assignments across subject areas. Analyses of longitudinal administrative data following 24,000 8th graders enrolled in 23 middle schools through the 10th grade indicate that these dimensions of tracking are empirically separable and have divergent effects on student achievement and the production of inequality.

State and federal accountability policies are predicated on the ability to estimate valid and reliable measures of school impacts on student learning. The typical spring-to-spring testing window potentially conflates the amount of learning that occurs during the school year with learning that occurs during the summer. We use a unique dataset to explore the potential for students’ summer learning to bias school-level value-added models used in accountability policies and research on school quality. The results of this paper raise important questions about the design of performance-based education policies, as well as schools’ role in the production of students’ achievement.

We utilize state data of nearly 1.7 million students in Ohio to study a specific sector of online education: K–12 schools that deliver most, if not all, education online, lack a brick-and-mortar presence, and enroll students full-time. First, we explore e-school enrollment patterns and how these patterns vary by student subgroups and geography. Second, we evaluate the impact of e-schools on students’ learning, comparing student outcomes in e-schools to outcomes in two other schooling types, traditional charter schools and traditional public schools. Our results show that students and families appear to self-segregate in stark ways where low-income, lower achieving White students are more likely to choose e-schools while low-income, lower achieving minority students are more likely to opt into the traditional charter school sector. Our results also show that students in e-schools are performing worse on standardized assessments than their peers in traditional charter and traditional public schools. We close with policy recommendations and areas for future research.

Between 2003 and 2013, the proportion of California eighth graders enrolled in algebra or a more advanced course nearly doubled to 65%. In this article, we consider the organizational processes that accompanied this curricular intensification. Facing a complex set of accountability, institutional, technical/functional, and internal political pressures, California schools responded to the algebra-for-all effort in diverse ways. While some schools detracked by enrolling all eighth graders in algebra, others “tracked up,” creating more advanced geometry opportunities while increasing algebra enrollments. These responses created a new differentiated course structure that is likely to benefit advantaged students. Consistent with the effectively maintained inequality hypothesis, we find that detracking occurred primarily in disadvantaged schools while “tracking up” occurred primarily in advantaged schools.

The TNTP Core Teaching Rubric uses assessments of student behavior, rather than teacher actions, to rate a teacher's instructional practices. In this report, RAND researchers assess whether the TNTP Core Teaching Rubric produces scores that are representative of teachers' overall instructional practices and whether raters' content expertise influence scores on TNTP Core. The report includes recommendations to improve the use of TNTP Core.

RAND researchers assessed whether the TNTP Core Teaching Rubric produces scores that are representative of teachers' overall instructional practices and whether raters' content expertise influences scores on TNTP Core.

The United States is in the midst of an effort to intensify middle school mathematics curricula by enrolling more 8th graders in Algebra. California is at the forefront of this effort, and in 2008, the state moved to make Algebra the accountability benchmark test for 8th-grade mathematics. This article takes advantage of this unevenly implemented policy to understand the effects of curricular intensification in middle school mathematics. Using district-level panel data from all California K–12 public school districts, we estimate the effects of increasing 8th-grade Algebra enrollment rates on a 10th-grade mathematics achievement measure. We find that enrolling more students in advanced courses has negative average effects on students’ achievement, driven by negative effects in large districts.

The relatively low status of teaching as a profession is often given as a factor contributing to the difficulty of recruiting teachers, the middling performance of American students on international assessments, and the well-documented decline in the relative academic ability of teachers through the 1990s. Since the turn of the 21st century, however, a number of federal, state, and local teacher accountability policies have been implemented toward improving teacher quality over the objections of some who argue the policies will decrease quality. In this article, we analyze 25 years of data on the academic ability of teachers in New York State and document that since 1999 the academic ability of both individuals certified and those entering teaching has steadily increased. These gains are widespread and have resulted in a substantial narrowing of the differences in teacher academic ability between high- and low-poverty schools and between White and minority teachers. We interpret these gains as evidence that the status of teaching is improving.

Researchers examined school choice outcomes in New Orleans following 2005's Hurricane Katrina, including exit patterns of students across sectors and school types in New Orleans and the destination schools of mobile students.

To better understand who is taking advantage of e-schools and what effects such choices have on achievement, researchers analyzed data from Ohio, which has authorized e-schools since the early 2000s.