Research

Single-authored

Evaluating Teacher Evaluation – Evidence from Chile

This study investigates the causal effects of repeat, formative performance evaluations, under Chile’s national teacher evaluation system. The study’s main results suggest that student learning, teacher beliefs and teaching behaviors are not positively affected by a teacher’s evaluation, both in the year of the evaluation and in the year thereafter. These findings rest on data-sources with unusually comprehensive coverage of a national education system—positive effects on student performance are thus ruled out precisely. The article moreover confirms that its results are not driven by a teacher’s level of work experience, by student sorting, by systematic attrition, or by its model specification.

Do Students Benefit from Blended Instruction? Experimental Evidence from India

This experimental study investigates the causal effect of a teacher capacity building program that promotes blended instruction, on student learning. It will be implemented in government schools in Haryana, India, in collaboration with a large, local NGO (“Avanti Fellows”). The program’s objective is to positively affect the instruction of mathematics and science, in grades nine and ten. The study hypothesizes that student learning improves if teachers are given resources and training, to enrich their instruction with video-based learning materials. Secondly, the study hypothesizes that the intervention’s cost-effectiveness outperforms that of an alternative model of teacher capacity building, which does not rely on infrastructure upgrades and uses printed workbooks only.

Educational Opportunity and Prosocial Behavior

This research uses a randomized experiment to investigate the long-run effects of additional education on prosocial behavior. The article builds on an intervention in Cambodia that offered scholarships to students as they were beginning the fourth grade of primary school. The study follows these students as they are now approximately 21 years old. To measure prosocial behavior, I conduct large-scale, in-the-field dictator games (with tangible outcomes, and respondent deception).

First-authored

Assessing the Global Learning Crisis: A Fine-Grained Diagnosis Using Large-Scale Data from India

With Alejandro Ganimian and Karthik Muralidharan

We use large-scale, representative test data from India to estimate fine-grained skill profiles. We thus investigate whether students in grades four, six, and eight have mastered a fourth-grade level understanding of five mathematical skills. Our study documents low levels of student learning overall, and only slightly higher levels of mastery for students in higher grades. We show how a less nuanced assessment masks this lack of learning in higher grades. We also find high heterogeneity in mastery levels across states, and between female and male students. Overall, our study exposes shortcomings of commonly used assessments, highlights the value of a more nuanced understanding of student learning, and suggests that the severity of the Global Learning Crisis may have been underestimated.

Co-authored

Do Students Benefit from Personalized Learning? Experimental Evidence from India

With Alejandro Ganimian and Karthik Muralidharan

There is mounting evidence indicating that schoolchildren in many developing countries lag far behind their expected grade-level performance. Remedial education can help these low-performing students, but it does not address the needs of their high-performing peers. Ability-based grouping can benefit both types of students, but it may be too coarse to address students’ individual learning needs. We will conduct an experiment in 15 public “model” schools in Rajasthan, India to evaluate the impact of personalized instruction for 3442 students in grades 6 to 8, as delivered by a computer-assisted learning software. We will compare a version of the software that provides students with only grade-appropriate activities (the typical approach used by most software products) with a fully and a partially customized version of the program, as well as with a remedial version of the program. We plan to use these comparisons to understand what type of personalization is most (cost-)effective in improving student learning.

How Much Do Students Benefit from Practice Exercises? Experimental Evidence from India

With Alejandro Ganimian, Anuja Venkatachalam, and Karthik Muralidharan

In mathematics instruction, it is quite common for teachers to explain a topic and then assign their students a number of practice exercises – either as classwork or homework – to build “procedural knowledge” (i.e., knowledge about the algorithms to be followed to solve a specific problem) and “fluency” (i.e., capacity to solve these problems rapidly). Although there is general agreement among educators that this strategy is beneficial, prior studies have not determined the extent to which students benefit more from this practice. We will use a computer-assisted learning (CAL) software called “Mindspark” to randomly assign 4,350 students in grades 4-7 in 8 private schools in India to receiving or not receiving practice exercises after they learn a new mathematical concept, and to assess the impact on their procedural knowledge and fluency.

Learning by Doing? Experimental Evidence on Activity-based Instruction in India

With Johanna Fajardo-Gonzalez, Paul Glewwe, and Ashwini Sankar

The number of rigorous studies on “what works” to foster education in less developed countries has strongly increased, but there is surprisingly little evidence on how to improve child learning through changes in instructional practice. We study the effect of an innovative program in Karnataka, India, that promotes activity-based learning through teacher training, community engagement, and additional inputs. In a Randomized Controlled Trial (RCT), we assign 98 administrative units (Gram Panchayats) and 294 of their schools to either receiving the program or not. Our primary outcome of interest is child learning, in mathematics, for students enrolled in grade four (at baseline). The study’s secondary analyses disentangle the effect of individual program components, investigate mediating variables (instructional behaviors, community and parental engagement), and assess the program’s implementation fidelity. Sub-group analyses focus on differential effects by students’ initial skill level, gender, and geographic location (i.e., district).

Levers for Learning: The Relation Between School-level Factors and Literacy Outcomes in Low-income Schools in Colombia

With Felipe Barrera-Osorio, Sarah Dryden-Peterson, Bethany Mulimbi, Nozomi Nakajima, and Paola Uccelli

We study the relation between literacy outcomes and four levers for learning – instructional practice; school-community engagement; student, teacher, and parent well-being; and community belonging – in ten public schools in a mid-size city in Colombia, serving similar, low-income communities. We find that (1) some schools show significantly higher literacy outcomes, despite serving similar students; and (2) the most salient school-level factors in explaining literacy performance are higher levels of student sense of belonging and low levels of bullying.

  • Under review

Long-Term Impacts of Alternative Approaches to Increase Schooling: Experimental Evidence from a Scholarship Program in Cambodia

With Felipe Barrera-Osorio and Deon Filmer

This randomized trial investigates the long-term effects of a primary school scholarship program in rural Cambodia. We estimate impactsnine years after program inceptionon educational attainment, cognitive skills, socioemotional outcomes, labor market outcomes, and well-being. Our results point to systematic improvements in attainment, but no average impacts on long-term cognitive or socioemotional outcomes. A merit-based (as opposed to poverty-based) targeting strategy did, however, increase cognitive outcomes, especially for poorer students. We also report positive effects on cognition for males. We find no improvements for labor market outcomes, yet positive effects on well-being, driven by recipients of the merit-based scholarships.