Student Learning
The Causal Effect of Student Absences Post Pandemic: Evidence from Three School Systems
Researchers, educators, and policymakers have long worried about the consequences of student absences for educational achievement and attainment—concerns that have grown with the significant rise in absenteeism during and following the Covid-19 pandemic. Using administrative data from Maryland,… more →
Long-term Consequences of Early Access to Educational Opportunity
This paper examines the long-term consequences of tracking in middle school. Using longitudinal administrative data from a large, urban school district and regression and quasi-experimental matching methods, we find that students who had the opportunity to take advanced math earned higher math… more →
Supporting Females in STEM: Evidence on Student-Instructor Gender-Matching in 4-Year Research Universities in Texas
Despite progress in overall educational attainment, female students remain underrepresented in STEM fields. One proposed mechanism for improving female students' outcomes is exposure to same-gender faculty, yet evidence on both the prevalence and impacts of student–instructor gender matching in… more →
Math coursetaking trajectories in high school during the COVID-19 disruptions to schooling
Using student-level transcript data and information about instructional mode among public high school students in Massachusetts, this study examines the impact of disruptions to in-person instruction during the COVID-19 pandemic on students’ math coursetaking trajectories. We find that rates of… more →
Testing frequency and student achievement: A systematic review
School-based testing is widely used for monitoring students’ academic progress. Proponents argue that testing ensures accountability and guides teachers and managers, whereas opponents point to adverse consequences such as teaching to the test, and frequent testing creating anxiety and stress.… more →
The Consequences of Cellphone Restrictions in Classrooms
Schools are increasingly restricting cellphones worldwide amid concerns about achievement and mental health, yet causal evidence on school-level bans remains mixed. We examine cellphone restrictions in Chile before the pandemic, where teacher discretion over cellphone use generated classroom-… more →
Cheapskin Effects? The Heterogeneous Value of Industry-Recognized Certificates Earned by High School Students
Human capital theory and signaling models posit that educational credentials convey information about workers’ skills, producing discrete labor market returns beyond years of schooling. While extensive evidence documents these “sheepskin effects” for degrees, far less is known about industry-… more →
Beyond the Shutdown: Tracking Language Growth in Early Head Start Children Before, During, and After COVID-19
Understanding early language outcomes for low-income children in the wake of the COVID-19 pandemic is an important concern for researchers, policymakers, and educators. We examined language environments and language development among infants and toddlers in Early Head Start from pre-COVID,… more →
Who Is Newly Absent? Racial Inequities in Post-Pandemic Transitions into Chronic and Severe Absence in Georgia
Chronic absenteeism rose sharply following the onset of the COVID-19 pandemic and has declined only modestly since, yet most evidence remains cross-sectional and cannot distinguish persistence from redistribution in absence behavior. Using a cohort transition framework, the analysis compares… more →
The Effect of Air Pollution on Student Achievement: A Systematic Review and Meta-Analysis of the Causal Evidence
Air pollution is one of the most pressing global public health challenges of the 21st century. This article presents a systematic review and meta-analysis of the best available evidence of the effect of air pollution on student achievement. A meta-analysis of 28 causal studies around the world… more →
The Trade-off between Quality and Quantity: Evidence from a Field Experiment on Tutoring
High-dosage tutoring has the potential to substantially raise adolescent academic achievement. However, at scale, schools may not have the financial ability to deliver small-group tutoring frequently. In this paper, I test the relative importance of group size (quality) versus tutoring frequency… more →
Mapping the Mechanisms of Interdisciplinary Learning Transfer from Reading to Math Achievement: Evidence from a Large-Scale Randomized Controlled Trial
Far transfer---the application of learning across distant domains---remains elusive in intervention research, and even when it is found, its mechanisms remain unclear or unexplored. This study analyzes data from the Model of Reading Engagement (MORE), a sustained content literacy intervention… more →
Gifted Identification Across the Distribution of Family Income
Currently, 6.1 percent of K-12 students in the United States receive gifted education. Using education and IRS data that provide information on students and their family income, we show pronounced differences in who schools identify as gifted across the distribution of family income. Under 4… more →
School-Based Disability Identification Varies by Student Family Income
Currently, 18 percent of K-12 students in the United States receive additional supports through the identification of a disability. Socioeconomic status is viewed as central to understanding who gets identified as having a disability, yet limited large-scale evidence examines how disability… more →
COVID-19, School District Operations, and Student Academic Performance in Virginia
We use longitudinal student-level data and interrupted time series methods to examine the impact of the COVID-19 pandemic on mathematics achievement among 3rd-8th grade students in Virginia, a state that offered particularly low levels of access to in-person learning in the school reopening… more →
Bulwark or Barrier? The Effect of Academic Criteria-Based Reclassification on the High School Outcomes of Multilingual Learners in Texas
English learner (EL) classification can provide multilingual students (MLs) with key supports while simultaneously limiting access to important educational opportunities. To determine when students are ready to exit EL status, some states require students to meet academic criteria in addition to… more →
Predicting Persistence and Fadeout Across Multi-Site RCTs of an Early Childhood Mathematics Curriculum Intervention
This study examined predictors of persistence and fadeout across multiple cluster RCTs that evaluated a preschool mathematics curriculum. We used meta-analytic methods to explore how impacts on student mathematics achievement faded between post-test (i.e., endline) and one-year follow-up. We… more →
Does State-Mandated Third-Grade Reading Retention Policy Improve Achievement? Evidence from a Staggered-Adoption Difference-in-Differences Design
This paper investigates whether the state-mandated third-grade reading retention policy autonomously enhances student achievement or depends on broader literacy reforms. Using district-level data from the Stanford Education Data Archive (2010–2019), I employ a staggered-adoption Difference-in-… more →
Beyond the Classroom: Impact of a High-Dosage Tutoring Program on Student Literacy Achievement
This study examines the impact of a high-dosage tutoring program, characterized by low tutor-to-student-ratio, on the literacy achievement of students in grades two through five in a midsized suburban school district in the southeastern United States. Using a student-level randomized controlled… more →
Learning to Work Towards Goals: A Sequential Evaluation of the Effect of Goal-Setting Course on Academic and Soft Skills
This study sequentially evaluates a soft-skills course implemented in Ugandan and Kenyan primary schools that replaced academic review time with lessons on goal-setting and related skills as students prepared for high-stakes primary school-leaving exams. An exploratory evaluation in Uganda… more →