K-12 Education
Ready for What? School and District Responses to State College and Career Readiness Accountability in Tennessee
Tennessee’s K-12 accountability system incorporates three distinct measures of college and career readiness (CCR) for state and federal accountability. Each of these indicators applies its own set of metrics and performance benchmarks, but they all consistently draw upon similar components… 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 →
Removing Barriers to College Credits: Where and for Whom AP Exam Fee Waivers Work
Do policies that broaden educational access also foster success? We study this question in the context of North Carolina’s universal Advanced Placement (AP) exam fee waiver policy. Using student-course level administrative data, we exploit within-student variation on a sample of students who… 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 →
Do Test Scores Misrepresent Test Results? An Item-by-Item Analysis
Much of the data collected in education is effectively thrown away. Students answer individual test questions, but administrators and researchers only see aggregate performance. All the item-level data are lost. Ex ante it is not clear this destroys much useful information, since the aggregate… more →
The Effects of Immigration Enforcement on Student Outcomes in a New Era of Immigration Policy in the United States
This study presents the first evidence, to our knowledge, of the effects of the surge in interior immigration apprehensions in 2025 in the United States on student academic performance using detailed student-level administrative records from Florida. We find evidence that immigration enforcement… more →
ChatGPT vs. Machine Learning: Assessing the Efficacy and Accuracy of Large Language Models for Automated Essay Scoring
Automated Essay Scoring (AES) is a critical tool in education that aims to enhance the efficiency and objectivity of educational assessments. Recent advancements in Large Language Models (LLMs), such as ChatGPT, have sparked interest in their potential for AES. However, comprehensive comparisons… more →
COVID-19-Induced School Closures and Disadvantaged Children’s Post-COVID Academic Growth: A Longitudinal Cohort Study
This study draws on unique, repeated-measures data on a diverse (51% female; 53% Latine, 22% Black, 11% White), low-income cohort of children (N = 680) whose academic skills were assessed before and after COVID-19-induced school closures. Longitudinal models predicted changes in children’s… more →
Cheaper (and more effective) by the dozen: Evidence from 12 randomized A/B tests optimizing tutoring for scale
Over the course of 12 rapid randomized experiments, we optimize an educational tutoring program. Tutoring is one of the most effective educational approaches yet has remained difficult to scale due to high costs. We adaptively test and improve a technology-enabled tutoring program to enhance… more →
Creating Coherence: Does Instructional Alignment Affect the Impact of Tutoring?
This study examines the impact of using instructionally aligned literacy tutoring with students in kindergarten through third grade under a Response to Intervention framework. We conducted a randomized controlled trial to evaluate the impact on literacy assessment scores for 296 students in four… more →
Schools Never Die: Toward a Dynamic Systems Theory of School Closure
Educational researchers and policymakers typically treat school closures as discrete administrative decisions with clear endpoints. This paper challenges that assumption by applying Dynamic Systems Theory to school closure policy and research. We argue that schools function as adaptive… more →
Beyond the One-Teacher Model: Experimental Evidence on Using Embedded Paraprofessionals as Personalized Instructors
Using embedded paraprofessionals to provide personalized instruction is a promising model for differentiating instruction within the classroom. This study examines two randomized controlled trials of paraprofessional-led tutoring in early-grade math and literacy. However, intent-to-treat (ITT)… more →
Creating Classes: Elementary school classroom assignments and their implications for student access to high-quality teaching
We investigate the distribution of students across classrooms in North Carolina elementary schools. While tracking is ubiquitous and well-documented in secondary education, limited evidence exists regarding cross-classroom clustering in elementary schools and its consequences. Consistent with… more →
Influence of Within-Class Age Differences on Adolescents’ Eating Behaviors
This study examines within-class age differences as a novel determinant of adolescents’ dietary behaviors, isolating it from confounders such as absolute age, season of birth, and country-specific school entry rules. Using a multi-country dataset of over 600,000 European students, we find that… more →
The reliability of classroom observations and student surveys in non-research settings: Evidence from Argentina
There is a growing consensus on the need to measure teaching effectiveness using multiple instruments. Yet, guidance on how to achieve reliable ratings derives largely from formal research in high-income countries. We study the reliability of classroom observations and student surveys conducted… more →
Sibling Spillovers and Free Schooling
We use administrative data to measure sibling spillovers on academic performance before and after the introduction of Free Secondary Education (FSE) in Tanzania. Prior to FSE, students whose older siblings narrowly passed the secondary school entrance exam were less likely to go to secondary… more →
Shock Absorption: Did School Turnaround Shelter Schools from the Pandemic’s Effects on Teacher Turnover?
Successful turnaround interventions should build school capacity to promote not just school improvement but also resilience to exogenous shocks that undermine schooling. While a large literature demonstrates that turnaround can improve school outcomes, little is known about whether it can help… more →
What is the impact of changing schools on the academic outcomes of elementary and middle school students?
We study how different kinds of school changes shape achievement in grades 4–8 using data from six California districts (2016–17 through 2019–20). We estimate the effects of structural (promotional), nonstructural summer, and midyear moves and find that structural and summer moves have near-zero… more →
A Framework for Building High-Quality Education Data for R&D in the Age of AI: The EDSI Dataset and Expert Insights
The Gates Foundation, the Walton Family Foundation, and the Chan Zuckerberg Initiative have launched a series of collaborative investments in building large-scale datasets that can support and accelerate data infrastructure for AI R&D efforts in education. In partnership with researchers… more →
The Impact of Cellphone Bans in Schools on Student Outcomes: Evidence from Florida
Cellphone bans in schools have become a popular policy in recent years in the United States, yet very little is known about their effects on student outcomes. In this study, we try to fill this gap by examining the causal effects of bans on student test scores, suspensions, and absences using… more →