EdWorkingPapers
A Longitudinal Study of External Contract Teacher Employment in Washington State School Districts
This study examines the phenomenon of external teacher contracting in Washington State schools. Using administrative data, we analyze shifting patterns of employment among external contract teachers. External contract teachers now represent a significant portion of the workforce in a few districts, but a very small portion statewide. These districts have formed robust online programs that may… more →
The Nation’s Achievement Inequality Report Card: An Assessment of Test Score and Equality Trends in Traditional Public, Charter, Catholic, and Department of Defense Schools
We present a descriptive comparison of trends in achievement and inequality in traditional public, public charter, Catholic, and Department of Defense schools in the U.S. Our sample includes 6,155,570 observations for 4th and 8th graders in math and reading between 2005 and 2024. We focus on changes in the 90th and 10th percentile scores of the students in those school sectors on the National… 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 period. We find notably large negative initial effects on math in 2020-21, much greater in magnitude than… 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 (quantity). I evaluate the impact of an in-school math tutoring program in a middle school in the… more →
Running a Business in High School: Selection into the Virtual Enterprises Program
To better prepare high school students for the workforce, many schools and districts are building career and technical education coursework that provides students with the opportunity to deeply engage in work-based learning. Virtual Enterprises (VE) is a program where students open school-based enterprises, hold positions in the company (e.g., Chief Executive Officer, Marketing Director), sell… 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 found that the magnitude of the impact at post-test was a strong predictor of the one-year follow-up… more →
Using experimental variation to examine the (co-)development of cognitive and social-emotional skills in early childhood
Questions about the stability of psychological constructs, skill generalization, and transfer have long motivated psychological research. Despite a proliferation of theory, the field has rarely established causal effects. We employed a novel approach to test the stability and codevelopment of cognitive and social-emotional skills in early childhood using longitudinal randomized controlled trial… more →
The Effect of Four-Day School Week Adoption on Teacher Retention and Sorting
As teacher shortages worsen across the U.S., many school districts have implemented a unique solution to attract and retain effective teachers: switching from the traditional five-day school week to a four-day school week (4DSW). I use 17 years of teacher-level employment data from Texas in a difference-in-differences analysis to examine whether the 4DSW truly affects teacher retention and… 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 demonstrated English proficiency. However, few studies empirically examine these criteria, which may… more →
Absent and Afraid? Immigration Enforcement and Student Attendance in the Second Trump Administration
Intensified immigration enforcement activity under the second Trump administration has increased anxiety for immigrants in the United States, including many families with school-age children. This study provides early evidence on the effects of the second Trump presidency on the attendance of students who may be from immigrant families. Using a difference-in-differences design, I estimate the… more →
Childhood Interventions and Life Course Development
A paradox has perplexed researchers studying childhood interventions: although program impacts on children’s skills often fade, some interventions have nonetheless produced long-run impacts on adult outcomes. Existing developmental theory does not provide a straightforward explanation. The fadeout-emergence paradox spotlights our limited understanding of how early skill gains shape long-run… more →
How General is Educational Intervention Fadeout? A Meta-Analysis of Educational RCTs with Follow-Up
Researchers and policymakers pursue educational interventions with the goal of altering children’s long-term trajectories. However, many effects fade quickly after interventions end. Researchers have sought to address the fadeout problem by identifying characteristics of interventions that lead to persistent effects, though reliable answers have been elusive. We present evidence from 87… more →
The Effect of Centralized-Admission School Lotteries on Between-School Segregation: Evidence from 300 Largest School Districts in the United States
This study examines how centralized-admission school lotteries affect between-school racial and ethnic segregation in the largest U.S. public school districts. Using original nationwide panel data and a difference-in-differences design with staggered adoption, the research analyzes effects on school composition, intergroup exposure, and distribution evenness. The findings reveal that centralized-… more →
The West Texas Measles Outbreak and Student Absences
Declining child-vaccination rates are driving a measles resurgence in the US, yet little evidence documents how these outbreaks may disrupt schooling. Using daily absence data from a school district at the center of the West Texas outbreak, this preregistered analysis finds absences increased 41 percent relative to the within-year variation from two prior years, with larger effects among younger… more →
More Often or Longer? The Effects of the Academic Schedule on Postsecondary Academic Outcomes
One of the most common scheduling decisions in higher education is the determination of biweekly or triweekly classes. On the surface, these two formats are equivalent in terms of the number of minutes in a course (75 minutes twice a week or 50 minutes three times a week). However, the two structures may have different pros and cons for both students and faculty and it is ambiguous which course… more →
Assessing Permanent School Closures: A Conceptual Framework
Amid widespread declining enrollment, the expiration of COVID-19 ESSER funding, and looming uncertainty in federal P-12 education involvement, many school districts may soon consider permanent school closures. While extant permanent school closure literature provides a starting point for future analyses, it often fails to advise the breadth of contexts in which future closures may occur, limiting… more →
Effects of a non-traditional teacher preparation program on non-test outcomes: evidence from relay graduate school of education in New York City
This study examines the effects of a non-traditional teacher preparation program, the Relay Graduate School of Education, on non-test outcomes for New York City public school students in Grades 3–8. By controlling for student and school fixed effects, I use plausibly random variation in Relay teacher assignments within students over time to identify causal Relay program effects. Results indicate… more →
The Influence of Partisanship in Local School Board Elections: Evidence from Exit Polling in Michigan & Rhode Island
Education in the U.S. has long been shaped by local school boards elected in nonpartisan contests, a structure intended to shield schools from broader political forces. Today, many states are considering reforms to make school board elections partisan, yet the impact on voters remains unclear. Using exit poll data from 839 voters in Michigan (nonpartisan elections) and Rhode Island (partisan… more →
Online Tutoring, School Performance, and School-to-Work Transitions: Evidence from a Randomized Controlled Trial
Tutoring programs for low-performing students, delivered in-person or online, effectively enhance school performance, yet their medium- and longer-term impacts on labor market outcomes remain less understood. To address this gap, we conduct a randomized controlled trial with 839 secondary school students in Germany to examine the effects of an online tutoring program for low-performing students… more →
Values, Visions, and Variation in American School Districts: A Computational Mixed Methods Analysis of School District Strategic Plans
The decentralization of power is a defining feature of the American education system, allowing schools to reflect community values and needs. Yet, little is known about how values and visions for education hold constant or vary across districts. Through an analysis of 617 district strategic plans, combining qualitative coding and computational topic modeling, we provide insight into how local… more →
Understanding the decision (not) to become a teacher: evidence from survey experiments with undergraduates in the UK and US
Teacher shortages are widespread, yet the reasons people choose (not) to enter the profession remain poorly understood. We conducted two survey experiments in which thousands of undergraduates chose between pairs of hypothetical jobs. This allowed us to evaluate the effects of differences in pay, working patterns and other job attributes on job choices, as well as explore how personality type and… 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-Differences design, as per Callaway and Sant’Anna (2021), to assess heterogeneous treatment effects… more →
Marginal Returns to Public Universities
This paper studies the returns to enrolling in American public universities by comparing the long-term outcomes of barely admitted versus barely rejected applicants. I use administrative admission records spanning all 35 public universities in Texas, which collectively enroll 10 percent of all American public university students, to systematically identify and employ decentralized cutoffs in SAT/… more →
Variations in Pre-Primary Education Infrastructure Within and Across Administrative Sectors in Rwanda
This study examines disparities in structural quality across Rwanda’s pre-primary modalities—centre-based, community-based, and home-based—operating under a single policy framework. Using data from 4,875 settings across 91 administrative sectors in seven districts, we applied multilevel models to separate within-sector differences by modality from between-sector variation, associated with sector-… more →
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 including participation in Early Postsecondary Opportunities (EPSOs), standardized tests like the ACT and… more →
Fast Track to Success? A Mixed Methods Evaluation of Condensed Course Formats at Tennessee Community Colleges
As colleges face increasing pressure to improve student outcomes, one solution gaining traction is the adoption of condensed courses (i.e., shortened academic terms). We employ quasi-experimental methods to estimate the effect of enrolling in a condensed course on course- and student-level outcomes at all public community colleges in Tennessee. We also leverage interviews with college faculty,… 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 trial, 333 students were randomly assigned to either receive tutoring during the intervention period of… more →
The Early Intervention and Early Childhood Special Education Workforce: Descriptive Evidence on Demographics and Turnover from Oregon
Early intervention (EI) and early childhood special education (ECSE) services for children with disabilities have expanded substantially across the U.S. over the past few decades, necessitating efforts to recruit and retain a qualified workforce to meet their needs. Despite widespread reports of staffing challenges in this sector, few contemporary studies provide large-scale evidence on this… 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 took multiple AP courses to estimate the policy’s effect on exam participation (access) and pass rates (… 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 provided evidence of positive impacts on girls' test scores. A confirmatory evaluation in Kenya found that… 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) analyses revealed no overall achievement impacts for either program. We then explore two mechanisms that… more →
The Architecture of Expected Wage Gaps: Between- and Within-School Sources of Career Education Inequality
This study investigates how school-level variation contributes to social stratification even before labor market entry by examining Career and Technical Education (CTE) as a key mechanism for sorting students into pathways with unequal economic returns. Using Delaware administrative data and Bureau of Labor Statistics occupational wage data, we introduce “expected wage” as a measure to quantify… 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 might be a sufficient statistic. Using data from Texas for 5 million students and 1.31 billion student-… more →
Labor Market Strength and Declining Community College Enrollment
Declining U.S. college enrollments have triggered questions about the health of the postsecondary sector. Using institution-level data, we make four points. First, such declines are driven not by the four-year sector but by two-year community colleges, which have apparently shrunk by over 30% since the peak of the Great Recession. Second, over one-third of this apparent decline is an artifact of… more →
Tutor CoPilot: A Human-AI Approach for Scaling Real-Time Expertise
Generative AI, particularly Large Language Models (LLMs), can expand access to expert guidance in domains like education, where such support is often limited. We introduce Tutor CoPilot, a Human-AI system that models expert thinking to assist tutors in real time. In a randomized controlled trial involving more than 700 tutors and 1,000 students from underserved communities, students with tutors… more →
Creating Short Forms of Early Childhood Development Measures: A Framework for Quantifying Statistical, Conceptual, and Practical Tradeoffs in Direct Assessment
Direct assessments of early childhood development (ECD) are a cornerstone of research in developmental psychology and are increasingly used to evaluate programs and policies in lower- and middle-income countries. Despite strong psychometric properties, these assessments are too expensive and time consuming for use in large-scale monitoring or national-level surveys. Short forms of direct… 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 reduced test scores for both U.S.-born and foreign-born Spanish-speaking students while also reducing… more →
Do As I Say: What Teachers’ Language Reveals About Classroom Management Practices
Classroom management critically affects students’ academic and behavioral outcomes, yet we lack quantitative methods for observing these practices at scale. This study develops and validates language-based measures of classroom management—such as responding to student behavior and issuing verbal or material sanctions—using natural language processing (NLP) on 1,652 elementary mathematics… more →
How do place-based scholarships affect student borrowing and academic outcomes? Lessons from Atlanta
Previous research shows that Achieve Atlanta’s placed-based scholarship and associated services meaningfully improve college persistence and completion. In this follow up study that uses similar methods but additional and more detailed data, we examine whether scholarship recipients exhibit different student loan portfolios, course-taking patterns, or academic performance. Using regression… more →
Education Governance and Race: An Analysis of School Board Discourse Using Large Language Models
Despite growing attention to school boards, it is unclear whether they primarily operate as bureaucratic forums, policy-making bodies, or arenas for contentious debate—particularly on issues of race. Recent controversies suggest increasing public engagement and conflict, but little evidence documents how often questions of race arise in board deliberations. This study analyzes over 40,000 meeting… 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 literacy and math trajectories from before school closures (ages 4-6; 2017-2019) to after school reopening (… 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 of LLM-based methods with traditional machine learning (ML) methods across different assessment… 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 schools in a large suburban school district in the southeastern United States. Students in the… 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 cost-effectiveness and scalability. Results show that seven of twelve tests led to efficiency improvements… more →
The Long-Term Effects of Rank in Elementary School
We estimate the long-term consequences of math and reading rank within an elementary school on short and long-term outcomes. We find that higher rank leads to better outcomes. Students ranked at the top in grade 7 perform up to 0.33 standard deviations higher on future school exams, are more likely to graduate high school and university, and earn significantly more at age 28. Math rank is… 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 ecosystems embedded within broader networks of relations that span social, cultural, political, and economic… more →
Policy Impacts of Reimbursement Rate Reform: Evidence from the Child Care and Development Fund
The Child Care and Development Fund (CCDF) subsidizes child care costs for families with low-incomes. Reimbursements for cost-subsidized care are paid to child care providers but are extremely low compared with market rates and actual cost of care. We examine how the 2014 congressional reauthorization of CCDF, which recommended states increase subsidy reimbursement rates to the 75th percentile of… 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 younger students within a class exhibit poorer dietary habits. Since confounders are controlled for,… 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 qualitative evidence suggesting that educators seek to create demographically balanced classrooms, we… more →
Does Expanding Access to High Quality Technical Education Induce Participation and Improve Outcomes?
Over the last 15 years, Career and Technical Education (CTE) has been changing as schools have aimed to better meet workforce needs and diversify pathways into higher education and the workforce. This study provides the first known causal evidence on the impact of CTE program expansion in U.S. comprehensive high schools on student participation and postsecondary outcomes. Using administrative… more →