Blinded

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Blinded

Blinded (/blaɪndɪd/), in a medical context, refers to a method used in research studies where the participants, the researchers, or both do not know specific details about the treatment the participants are receiving to prevent bias. This method is commonly used in Randomized Controlled Trials to increase the validity of the results.

Etymology

The term "blinded" in this context is derived from the phrase "blind study," which itself comes from the idea of "blinding" or "making blind" the participants or researchers to certain information.

Types of Blinding

There are several types of blinding used in medical research, including:

  • Single-Blind Study: In a single-blind study, the participants do not know whether they are receiving the treatment or a placebo, but the researchers do know.
  • Double-Blind Study: In a double-blind study, both the participants and the researchers do not know who is receiving the treatment and who is receiving the placebo.
  • Triple-Blind Study: In a triple-blind study, the participants, researchers, and the statistician analyzing the data do not know who is receiving the treatment and who is receiving the placebo.

Related Terms

  • Placebo: A placebo is a substance or treatment that has no therapeutic effect, used as a control in testing new drugs.
  • Bias: Bias in medical research is a systematic error or deviation from the truth in results or inferences.
  • Randomized Controlled Trials: A randomized controlled trial is a type of scientific experiment that aims to reduce bias when testing a new treatment.

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