Embedding a Proof-of-Concept Test in an At-Scale National Policy Experiment: Greater Policy Learning But at What Cost to Statistical Power? The Social Security Administration’s Benefit Offset National Demonstration (BOND)
Abstract:A randomized experiment that measures the impact of a social policy in a sample of the population reveals whether the policy will work on average with universal application. An experiment that includes only the subset of the population that volunteers for the intervention generates narrower “proof-of-concept” evidence of whether the policy can work for motivated individuals. Both forms of learning carry value, yet evaluations rarely combine the two designs. The U.S. Social Security Administration conducted an … Show more
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