Student Learning
The Effect of Early Childhood Programs on Third-Grade Test Scores: Evidence from Transitional Kindergarten in Michigan
Transitional Kindergarten (TK) is a relatively recent entrant into the U.S. early education landscape, combining features of public pre-K and regular kindergarten. We provide the first estimates of the impact of Michigan’s TK program on 3rd grade test scores. Using an augmented regression… more →
Under the Weather? The Effects of Temperature on Student Test Performance
As students are exposed to extreme temperatures with ever-increasing frequency, it is important to understand how such exposure affects student learning. In this paper we draw upon detailed student achievement data, combined with high-resolution weather records, to paint a clear portrait of the… more →
COVID-19, School Closures, and Student Learning Outcomes: New Global Evidence from PISA
The COVID-19 pandemic resulted in significant disruption in schooling worldwide. This paper uses global test score data to estimate learning losses. It models the effect of school closures on achievement by predicting the deviation of the most recent results from a linear trend using data from… more →
The Ups and Downs of Classroom Quality Over the Preschool Year and Relations to Children’s School Readiness
Despite considerable evidence on the links between average classroom quality and children’s learning, the importance of variation in quality is not well understood. We examined whether three measures of variation in observed classroom quality over the school year – overall variation in quality,… more →
A Scalable Approach to High-Impact Tutoring for Young Readers: Results of a Randomized Controlled Trial
This paper presents the results from a randomized controlled trial of Chapter One, an early elementary reading tutoring program that embeds part-time tutors into the classroom to provide short bursts of 1:1 instruction. Eligible kindergarten students were randomly assigned to receive… more →
Does Feedback on Talk Time Increase Student Engagement? Evidence from a Randomized Controlled Trial on a Math Tutoring Platform
Providing ample opportunities for students to express their thinking is pivotal to their learning of mathematical concepts. We introduce the Talk Meter, which provides in-the-moment automated feedback on student-teacher talk ratios. We conduct a randomized controlled trial on a virtual math… more →
The Achievement Effects of Scaling Early Literacy Reforms
While legislators have implemented many “science of reading” initiatives in the last two decades, the evidence on the impact of these reforms at scale is limited. In this pre-registered, quasi-experimental study, we examine California’s recent initiative to improve early literacy across the… more →
Are Preschool Programs Becoming Less Effective?
High-quality preschool programs are heralded as an effective policy tool to promote the development and life-long wellbeing of children from low-income families. Yet evaluations of recent preschool programs produce puzzling findings, including negative impacts, and divergent, weaker results than… more →
Assessing the Benefits of Education in Early Childhood: Evidence from a Pre-K Lottery in Georgia
Numerous studies have demonstrated a strong link between participation in pre-K programs and both short-term student achievement and positive later-life outcomes. Existing evidence primarily stems from experimental studies of small-scale, high-quality programs conducted in the 1960s and… more →
Early Algebra Affects Peer Composition
Although existing research suggests that students benefit on a range of outcomes when they enroll in early algebra classes, policy efforts that accelerate algebra enrollment for large numbers of students often have negative effects. Explanations for this apparent contradiction often emphasize… more →
The long-term distributional impacts of a full-year interleaving math program in Nigeria
This study reports the findings from a year-long randomized evaluation assessing the impact of assigning 62 classrooms in Nigeria to receive either blocked or interleaved math problem sets. Blocked practice sessions focused on a single skill at a time. Interleaved problem sets alternated between… more →
Teacher Preparation, Classroom Structure, and Learning Outcomes for Students with Disabilities
Ample research investigates returns to teacher preparation and other instructional inputs for the general student population, yet evidence is lacking for students with disabilities (SWDs). This study uses North Carolina data to estimate achievement returns to teacher preparation by classroom… more →
Explaining the Productivity Paradox: Experimental Evidence from Educational Technology
Explaining the productivity paradox—the phenomenon where an introduction of information and communication technology (ICT) does not lead to improvements in labor productivity—is difficult, as changes in technology often coincide with adjustments to working hours and substitution of labor. I… more →
Can Patience Account for Subnational Differences in Student Achievement? Regional Analysis with Facebook Interests
Decisions to invest in human capital depend on people’s time preferences. We show that differences in patience are closely related to substantial subnational differences in educational achievement, leading to new perspectives on longstanding within-country disparities. We use social-media data… more →
Improving elementary school students’ reading comprehension through content-rich literacy curriculum: The effect of structured read-aloud supplements on measures of reading comprehension transfer
This study contributes to the science of teaching reading by illustrating how a ubiquitous classroom practice – read alouds – can be enhanced by fostering teacher language practices that support students’ ability to read for understanding. This experimental study examines whether and to what… more →
Rural Early Childhood Programs & School Readiness: An Evaluation of the Early Steps to School Success Program
Prior research has clearly established the substantial expected payoffs to investments in early childhood education. However, the ability to deliver early childhood programs differs across communities with access to high quality programing especially hard to establish in rural communities. We… more →
Educational Spillover Effects of New English Learners in a New Destination State
The number of English learners enrolled in public schools has grown substantially in the United States over the past two decades. The growth is especially large in states in the South and Midwest that have not been traditional destinations for recent immigrants. In this study, we examine the… more →
Who Benefits from Remote Schooling? Self-Selection and Match Effects
We study the distributional effects of remote learning. Our approach combines newly collected data on parental preferences with administrative data from Los Angeles. The preference data allow us to account for selection into remote learning while also studying selection patterns and treatment… more →
Sibling Spillovers May Enhance the Efficacy of Targeted School Policies
Public policies often target individuals but within-family externalities of such interventions are understudied. Using a regression discontinuity design, we document how a third grade retention policy affects both the target children and their younger siblings. The policy improves test scores of… more →
Can brick phones bridge the digital learning divide? Evidence from SMS-based math practice
Hardware requirements are a barrier to widespread adoption of digital learning software among low-income populations. We investigate the demand among smallholder-farming households for a simple, adaptive math learning tool that can be accessed by widely available ``brick'' phones, and its effect… more →