double-blind study
- Noun:
- A scientific experiment: A "double-blind study" is a specific type of scientific experiment or clinical trial.
- A procedure with concealed information: In this procedure, neither the participants (subjects) nor the researchers (experimenters) administering the treatment know which participants are receiving the real treatment and which are receiving a placebo or control. This is done to prevent bias.
- Noun:
- The new drug's effectiveness was confirmed through a rigorous double-blind study.
- To ensure unbiased results, the researchers designed a double-blind study.
"to conduct a double-blind study": to carry out or perform this type of experiment.
- The institute will conduct a double-blind study to test the hypothesis.
"in a double-blind study": used to describe the context or setting of research.
- In a double-blind study, all participants receive identical-looking pills.
Double-blind procedure (n): This is a synonym for "double-blind study," referring to the methodological approach itself.
- The double-blind procedure is the gold standard in clinical research.
Blinding (n): The general technique of concealing information in an experiment. A double-blind study uses double blinding.
- Blinding is essential to reduce bias.
Single-blind study (n): An experiment where only the participants are unaware of their group assignment, but the researchers are not.
- A single-blind study is less rigorous than a double-blind study.
- Double-blind trial: Often used interchangeably, especially in medical contexts.
- Double-blind experiment: Emphasizes the experimental nature.
- Double-blind clinical trial: Specifically refers to studies testing medical treatments on patients.
Placebo-controlled: Often used with "double-blind study" to specify that the control group receives a placebo.
- The research was a placebo-controlled, double-blind study.
Randomized double-blind study: Specifies that participants are randomly assigned to groups in addition to the double-blind design.
- The evidence comes from a large, randomized double-blind study.
- an experimental procedure in which neither the subjects of the experiment nor the persons administering the experiment know the critical aspects of the experiment
- a double-blind procedure is used to guard against both experimenter bias and placebo effects