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Chart showing LAYS gained per $100 on a log scale. Giving information has huge variance but the highest gains. Targeted teaching and structured lessons also had high average gains.

What Interventions Deliver the Most Quality Years of Education? And at What Price?

There are many studies that show how one intervention reduces dropouts (better access to school) or another intervention increases learning (better quality of schooling). But policymakers and others care about a combination of access and learning! So how do you choose between one intervention that says it will keep kids in school longer and another that says it will boost their learning? Presenting the results of evaluations in terms of learning-adjusted years of schooling, or LAYS, is one solution.