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The Cambridge Randomizer

The Cambridge Randomizer. The Problem :. In carefully designed experiments, random assignment ( RA ) procedures can be quite expensive, time-consuming and difficult to manage

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The Cambridge Randomizer

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  1. The Cambridge Randomizer

  2. The Problem: • In carefully designed experiments, random assignment (RA) procedures can be quite expensive, time-consuming and difficult to manage • RA is usually carried out by the research team, not the treatment-provider, in order to increase the likelihood that the integrity of the research will not be challenged. • Can treatment providers conduct the RA themselves, without jeopardizing the integrity of the RCT?

  3. The Cambridge Randomizer • A low-cost, secure and user-friendly online portal for RA • Treatment-providers can now conduct the RA themselves : • Secure log-in (meets data protection demands) • Assess eligibility of cases to participate in the RCT • provide instantaneous baseline information for each case • Immediate random llocationinto treatment and control groups. • The Randomizer automatically sends an electronic report to the research team with each case that goes through the pipeline  Researchers maintain control over the scientific process • Both quantitative and qualitative data can be accommodated.

  4. “Random Assignment Without Tears”

  5. Ariel, Barak, Lawrence Sherman and Jordi Vila (forthcoming?). “Random Assignment without Tears: How to Stop Worrying and Love the Cambridge Randomizer.” Journal of Experimental Criminology ba285@cam.ac.uk

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