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This study conducted an experimental intervention in unelectrified areas of northern Bangladesh to investigate the effectiveness of solar products in improving children's educational achievement. It found that treated households substituted solar lanterns for kerosene-based lighting products, helping to decrease total household expenditure. Solar lanterns increased the children's home-study hours, particularly at night and before exams. The solar lanterns initially led to an increase in school attendance, but this effect diminished over time. However, the increased study hours and initial improvement in school attendance did not translate into improved academic performance. Varying the number of solar products within the treated households did not alter these results. Analyses that exploited the school grade treatment intensity also provided no evidence suggesting that spillover effects explained the "no academic performance effects." These findings suggest that improving the home-study environment solely through the provision of solar products may have a limited impact on children's educational achievement.

Clean And Renewable Energy --- Randomized Control Trials --- Solar Light

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Early childhood experiences lay the foundation for outcomes later in life. Policy makers in developing countries face a dual challenge of promoting access to and quality of early childhood development services, but evidence on how to manage this trade-off is scarce. This paper studies two experiments of early childhood development programs in The Gambia: one increasing access to services, and another improving service quality. In the first experiment, new community-based early childhood development centers were introduced to randomly chosen villages that had no preexisting, structured early childhood development services. In the second experiment, a randomly assigned subset of existing early childhood development centers received intensive provider training. The analysis finds no evidence that either intervention improved average levels of child development. Exploratory analysis suggests that the first experiment, which increased access to relatively low-quality early childhood development services, led to declines in child development among children from less disadvantaged households. The evidence supports that these households may have been steered away from better quality early childhood settings in their homes. Comparisons of observationally similar children across experiments reveal that existing early childhood development centers increased language skills by 0.4 standard deviation relative to the community-based alternative, reflecting differences in program quality.

Cognitive Stimulation --- Early Childhood Development --- Education --- Randomized Control Trials --- Teacher Training

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This paper evaluates the effects of interventions based on behavioral science on measures of early childhood socio-cognitive development (and related household-level outcomes) for children from households receiving cash transfers in Madagascar, using a multi-arm cluster-randomized trial. Three behavioral interventions (a Mother Leaders group and associated activities, by itself or augmented with a self-affirmation or a plan-making nudge) are layered onto a child-focused cash transfer program targeting children from birth to age six years. Approximately 18 months into the implementation of these interventions and 20 months since baseline, the study finds evidence that households in the behaviorally enhanced arms undertake more desirable parenting behaviors, interact more with their children, prepare more (and more diverse) meals at home, and report lower food insecurity than households that received only cash. Children from households in several of the behaviorally enhanced arms also perform better than children from households in the cash-only arm on several measures of socio-cognitive development, including language learning and social skills.

Behavioral Economics --- Cognitive Development --- Conditional Cash Transfers --- Early Childhood Development --- Education --- Human Capital --- Poverty Reduction --- Randomized Control Trials --- Social Protections and Assistance --- Social Protections and Labor

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This paper studies whether a particular socio-emotional skill -grit (the ability to sustain effort and interest toward long-term goals)-can be cultivated and how this affects student learning. The paper implements, as a randomized controlled trial, a nationwide low-cost intervention designed to foster grit and self-regulation among sixth and seventh grade students in primary schools in North Macedonia (about 33,000 students across 350 schools). Students exposed to the intervention report improvements in self-regulation, in particular the perseverance-of-effort facet of grit, relative to students in a control condition. The impacts on students are larger when both students and teachers are exposed to the curriculum than when only students are treated. Among disadvantaged students, the study also finds positive impacts on grade point averages, with gains of up to 28 percent of a standard deviation one year post-treatment. However, the findings also point toward a potential downside: although the intervention made students more perseverant and industrious, there is some evidence that it may have reduced consistency in their interests over time.

Disadvantaged Groups --- Education --- Education and Society --- Effective Schools and Teachers --- Gender --- Gender and Development --- Gender and Education --- Metacognition --- Randomized Control Trials --- Secondary Education

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This study reports the findings of a large-scale, multiple-arm, cluster-randomized control study carried out in rural Punjab, India, to assess the impact of a flagship sanitation program of the Government of India. The program, the Clean India Mission for Villages, was implemented between October 2014 and October 2019 and aimed to encourage the construction of toilets, eliminate the practice of open defecation, and improve the awareness and practice of good hygiene across rural India. It utilized a combination of behavioral change campaigns, centered on the community-led total sanitation approach, and financial incentives for eligible households. The study also evaluates the incremental effects of intensive hygiene awareness campaigns in selected schools and follow-up initiatives in selected communities. The study finds that the coverage of "safely managed" toilets among households without toilets increased by 6.8-10.4 percentage points across various intervention arms, compared with a control group. Open defecation was reduced by 7.3-7.8 percentage points. The program also had significant positive impacts on hygiene awareness among adults and children, although the interventions of school campaigns and intensive follow-up were of limited additional impact.

Awareness Campaign --- Health and Sanitation --- Health, Nutrition and Population --- Hygiene --- Hygiene Promotion and Social Marketing --- Open Defecation --- Randomized Control Trials --- Sanitation --- Sanitation and Sewerage --- Toilets --- Town Water Supply and Sanitation --- Water and Human Health --- Water Resources --- Water Supply and Sanitation