This webinar introduced a practical toolkit for iterative A/B testing, bringing together perspectives from funders, researchers, implementing partners, and government. Designed to strengthen routine learning and improve programme cost-effectiveness, iterative A/B testing helps organisations test small changes, learn quickly, and continuously optimise programmes already operating at scale.
Speakers from the Gates Foundation, Youth Impact, the IPA Right-Fit Evidence Unit, the Agency Fund, and South Africa’s Department of Basic Education shared reflections on why iterative testing matters, what it looks like in practice, and how it can support better decision-making across diverse institutional contexts.
The session provided a clear overview of the approach: how iterative A/B testing differs from traditional evaluations, when it is most useful, and how organisations can get started using the new toolkit. We concluded with next steps for those interested in exploring technical support, collaboration, and continued learning.
