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CSAE Scaling Up What Works: Experimental Evidence on External Validity in Kenyan Education

Authors: Bold, T.; Kimenyi, M.; Mwabu, G.; Ng'ang'a, A.; Sandefur, J.

Publication date: 2013

The recent wave of randomized trials in development economics has provoked criticisms regarding external validity. In this paper, the Centre for the Study of African Economies investigates two concerns – heterogeneity across beneficiaries and implementers – in a randomized trial of contract teachers in Kenyan schools.