RAND Corporation
Improving Average Treatment Effect Estimates in Small-Scale Randomized Controlled Trials
Researchers often include covariates when they analyze the results of randomized controlled trials (RCTs), valuing the increased precision of the estimates over the potential of inducing small-sample bias when doing so. In this paper, we develop a sufficient condition which ensures that the… more →
A Descriptive Analysis of Cream Skimming and Pushout in Choice versus Traditional Public Schools
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… more →
Inequality in Household Adaptation to Schooling Shocks: Covid-Induced Online Learning Engagement in Real Time
We use high frequency internet search data to study in real time how US households sought out online learning resources as schools closed due to the Covid-19 pandemic. By April 2020, nationwide search intensity for both school- and parent-centered online learning resources had roughly doubled… more →
School's Out: The Role of Summers in Understanding Achievement Disparities
Summer learning loss (SLL) is a familiar and much-studied phenomenon, yet new concerns that measurement artifacts distorted canonical SLL findings create a need to revisit basic research on SLL. Though race/ethnicity and SES only account for about 4% of the variance in SLL, nearly all prior work… more →
Social Returns to Private Choice? Effects of Charter Schools on Behavioral Outcomes, Arrests, and Civic Participation
The vast majority of literature on school choice, and charter schools in particular, focus on attending an elementary or middle school grades and often focus on test scores or other proximal outcomes. Much less is known about the long-term effects of attending a charter school in 9th grade. It… more →
Heterogeneous Effects of Early Algebra across California Middle Schools
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… more →
California’s Positive Outliers: Districts Beating the Odds
Despite wide achievement gaps across California between students from different racial and socioeconomic backgrounds, some school districts have excelled at supporting the learning of all their students. This analysis identifies these positive outlier districts—those in which students of color,… more →
Disparities and Discrimination in Student Discipline by Race and Family Income
Black and poor students are suspended from U.S. schools at higher rates than white and non-poor students. While the existence of these disparities has been clear, the causes of the disparities have not. We use a novel dataset to examine how and where discipline disparities arise. By… more →
Beyond tracking and detracking: The dimensions of organizational differentiation in schools
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.