Randomized controlled trials in lower-income countries have demonstrated ways to increase learning, in specific settings. This study uses a large-scale, nationwide RCT in Ghana to show the external validity of four school-based interventions inspired by other RCTs. Even though the government implemented the programs within existing systems,…

This study employed regular classroom tests as an intervention to help students learn and understand the concepts periodicity and chemical bonds in chemistry. The participants of the study were thirty four second year science students at Swedru Senior High School in the Central Region of Ghana. These students were taught for eight weeks and at the…

Rigorous evidence from around the world has shown that significant improvements in learning can be obtained at comparatively low cost by spending more, focused time ensuring that the bottom half of the class in the early grades does not get left behind. The authors present results from the Teacher Community Assistant Initiative (TCAI) that tests…