Impact evaluations aim to measure the outcomes that can be attributed to a specific policy or intervention. Although there have been excellent reviews of the different methods that an evaluator can choose in order to estimate impact, there has not been sufficient attention given to questions related to timing: How long after a program has begun should one wait before evaluating it? How long should treatment groups be exposed to a program before they...
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INFORMATION
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2008/08/01
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Document de travail de recherche sur les politiques
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WPS4686
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1
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1
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2010/07/01
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Disclosed
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Timing and duration of exposure in evaluations of social programs
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early childhood development program
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