Can Khan Academy E-learning Video Tutorials Improve Mathematics Achievement in Sri Lanka?

December 2018

IPS Research Fellow, Bilesha Weeraratne, recently published a co-authored article with Brian Chin of Asian Development Bank, Philippines titled “Can Khan Academy e-learning video tutorials improve mathematics achievement in Sri Lanka?” in the International Journal of Education and Development using Information and Communication Technology.

This study involves an impact evaluation of the introduction of video tutorials (Khan Academy (KA) in a blended learning environment for 632 ninth grade students in 20 schools in Sri Lanka.

On average KA resulted in increasing students’ raw and scaled test scores by 3.77 and 3.15 percentage points, respectively, and standardized test scores by 0.20 standard deviations above the mean test score. The evaluation provides initial evidence that the use of KA would help Sri Lankan students in mathematics. The findings are robust to alternative specifications, where school and teacher inputs are controlled for in addition to students’ characteristics, and when estimation is limited to the subsample of students that had a common mathematics teacher across the treatment and the control groups.