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Subject Evaluation in Social Experiments

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  • Tomas Philipson
  • Larry V. Hedges

Abstract

This paper concerns inferring how self-interested subjects, as opposed to altruistic investigators, evaluate treatments in social experiments. The authors argue that the attrition behavior of subjects reveals their evaluation and discuss the usefulness of using such data in performing subject-based evaluation. The authors study the causes of disagreements between investigators and subjects in evaluating treatments and empirically assess the degree to which they disagree. The paper provides an empirical framework for estimating the systematic level of disagreement in the presence of such errors. Using clinical trials, the authors find substantial evidence of overapproval by investigators in about one-third of the trials analyzed.

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Bibliographic Info

Article provided by Econometric Society in its journal Econometrica.

Volume (Year): 66 (1998)
Issue (Month): 2 (March)
Pages: 381-408

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Handle: RePEc:ecm:emetrp:v:66:y:1998:i:2:p:381-408

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Cited by:
  1. Philipson, Tomas & Malani, Anup, 1999. "Measurement errors: A principal investigator-agent approach," Journal of Econometrics, Elsevier, vol. 91(2), pages 273-298, August.
  2. Grasdal, A., 2001. "The Performance of Sample Selection Estimators to Control for Attrition Bias," Norway; Department of Economics, University of Bergen 225, Department of Economics, University of Bergen.
  3. Paul Ellickson & Scott Stern & Manuel Trajtenberg, 2001. "Patient Welfare and Patient Compliance -- An Empirical Framework for Measuring the Benefits from Pharmaceutical Innovation," NBER Chapters, in: Medical Care Output and Productivity, pages 539-564 National Bureau of Economic Research, Inc.
  4. John List & David Reiley, 2008. "Field experiments," Artefactual Field Experiments 00091, The Field Experiments Website.
  5. Karine Lamiraud & Pierre-Yves Geoffard, 2006. "Therapeutic non adherence: a rational behavior revealing patient preferences ?," PSE Working Papers halshs-00589121, HAL.
  6. Chassang, Sylvain & PadrĂ³ i Miquel, Gerard & Snowberg, Erik, 2010. "Selective Trials: A Principal-Agent Approach to Randomized Controlled Experiments," CEPR Discussion Papers 8003, C.E.P.R. Discussion Papers.
  7. Tomas Philipson, 1999. "Economic Epidemiology and Infectious Diseases," NBER Working Papers 7037, National Bureau of Economic Research, Inc.
  8. Rohlfs, Chris & Sullivan, Ryan & Kniesner, Thomas J., 2013. "Hedonic Estimation under Very General Conditions Using Experimental and Quasi-Experimental Designs," IZA Discussion Papers 7554, Institute for the Study of Labor (IZA).

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