Student Learning
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 →
Learning during the Pandemic: Evidence from Uzbekistan
School closures induced by the COVID-19 pandemic led to concerns about student learning. This paper evaluates the effect of school closures on student learning in Uzbekistan, using a unique dataset that allows assessing change in learning over time. The findings show that test scores in math for… more →
Unequal Learning Loss: How the COVID-19 Pandemic Influenced the Academic Growth of Learners at the Tails of the Achievement Distribution
The COVID-19 pandemic resulted in substantial unfinished learning for U.S. students, but to differing degrees for various subgroups. For example, students of color, from low-income families, or who attended high-poverty schools experienced greater unfinished learning. In this study we examined… more →
Time to Transfer: Long-Term Effects of a Sustained and Spiraled Content Literacy Intervention in the Elementary Grades
We investigated the effectiveness of a sustained and spiraled content literacy intervention that emphasizes building domain and topic knowledge schemas and vocabulary for elementary-grade students. The Model of Reading Engagement (MORE) intervention underscores thematic lessons that provide an… more →
In School, Engaged, On-track? The Effect of the Pandemic on Student Attendance, Course Grades, and Grade Retention in North Carolina
The effects of the COVID-19 pandemic on students’ experiences in school were widespread. Early research show reductions in test scores across grade levels and student groups. This study extends research evidence to additional student outcomes – absences, course grades, and grad retention – and… more →
Online tutoring works: Experimental evidence from a program with vulnerable children
We provide evidence from a randomized controlled trial on the effectiveness of a novel, 100-percent online math tutoring program, targeted at secondary school students from highly disadvantaged neighborhoods. The intensive, eight-week-long program was delivered by qualified math teachers in… more →