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Walking the talk: the need for a trial registry for development interventions

  • Ole Dahl Rasmussen
  • Nikolaj Malchow-M�ller
  • Thomas Barnebeck Andersen

Recent advances in the use of randomised control trials to evaluate the effect of development interventions promise to enhance our knowledge of what works and why. A core argument supporting randomised studies is the claim that they have high internal validity. The authors argue that this claim is weak as long as a trial registry of development interventions is not in place. Without a trial registry, the possibilities for data mining, created by analyses of multiple outcomes and subgroups, undermine internal validity. Drawing on experience from evidence-based medicine and recent examples from microfinance, they argue that a trial registry would also enhance external validity and foster innovative research.

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File URL: http://hdl.handle.net/10.1080/19439342.2011.605160
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Article provided by Taylor & Francis Journals in its journal Journal of Development Effectiveness.

Volume (Year): 3 (2011)
Issue (Month): 4 (December)
Pages: 502-519

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Handle: RePEc:taf:jdevef:v:3:y:2011:i:4:p:502-519
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