Have you ever implemented a double-blind experiment to help with your research? If so what have you used this for?

Question: Have you ever implemented a double-blind experiment to help with your research? If so what have you used this for?
- Keywords:
  blind,
  double-blind,
  experiment,
  implement,
  research
Asked by reedy to Probash on 18 Mar 2011 in Categories: Your Research.
- Probash Chowdhury answered on 18 Mar 2011:
  
  Yes, this is often used during clinical trials (using human volunteers or patients). During a clinical trial a volunteer/patient (subject) will be given the new medicine or a placebo (a substance that will not cause a medical effect). A double blind means neither the subject nor the doctor on the trial knows whether they are giving/receiving the placebo or medicine. Only the company running the trial (such as GlaxoSmithKline) knows during the trial. Once all the results are gathered together the trial is unblinded i.e. the doctor and subject are told what they had received/given.

Question: Have you ever implemented a double-blind experiment to help with your research? If so what have you used this for?