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.
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