This page is optimized for a taller screen. Please rotate your device or increase the size of your browser window.

A Design-Based Approach to Improve External Validity in Welfare Policy Evaluations

Elizabeth Tipton, Laura Peck


August 9, 2016
Large-scale randomized experiments are important for determining how policy interventions change average outcomes. Researchers have begun developing methods to improve the external validity of these experiments. One new approach is a balanced sampling method for site selection, which does not require random sampling and takes into account the practicalities of site recruitment including high nonresponse.

In this article, the authors consider how a balanced sample strategic site selection method might be implemented in a welfare policy evaluation.