Blind testing
Blind Testing
Blind testing (pronunciation: /blaɪnd ˈtɛstɪŋ/) is a method used in various scientific disciplines, including medicine, psychology, and statistics, to eliminate bias and achieve more accurate results.
Etymology
The term "blind testing" originates from the concept of "blindness" or lack of sight. In this context, it refers to the intentional withholding of certain information from participants or researchers to prevent bias.
Definition
In a blind test, the individuals involved are unaware of certain aspects of the experiment. This can include the participants, the researchers, or both. The purpose of this method is to prevent any bias or influence on the results that could be caused by knowledge of these aspects.
There are two main types of blind testing: single-blind test and double-blind test. In a single-blind test, the participant does not know certain information (such as whether they are receiving a treatment or a placebo), while in a double-blind test, both the participant and the researcher are unaware of this information.
Related Terms
- Single-blind test: A type of blind test where only the participant is unaware of certain aspects of the experiment.
- Double-blind test: A type of blind test where both the participant and the researcher are unaware of certain aspects of the experiment.
- Placebo: A substance or treatment that has no therapeutic effect, used as a control in testing new drugs.
- Bias: Prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
- Control group: A group in an experiment or study that does not receive treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do.
External links
- Medical encyclopedia article on Blind testing
- Wikipedia's article - Blind testing
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