Random assignment
Random assignment
Random assignment or random placement is a experimental design technique in which subjects or participants are randomly assigned to different groups in an experiment or study. This method is used to eliminate bias and ensure that the groups are comparable, thereby increasing the validity of the results.
Pronunciation
- /ˈrændəm əˈsaɪnmənt/
Etymology
The term "random assignment" comes from the statistical concept of "randomness", which refers to the lack of pattern or predictability in events, and "assignment", which refers to the act of assigning something.
Related terms
- Randomization: The process of making something random; in various contexts this involves, for example, generating a random permutation of a sequence (such as when shuffling cards), selecting a random sample of a population, or generating random numbers (see random number generation).
- Control group: In an experiment, the group that does not receive the experimental treatment or intervention. The control group is used as a baseline against which to compare the results of the experimental group.
- Experimental group: In an experiment, the group that receives the experimental treatment or intervention.
- Bias: A systematic error in an experiment or study that can lead to inaccurate results.
- Validity: The extent to which a test or experiment measures what it is supposed to measure.
See also
External links
- Medical encyclopedia article on Random assignment
- Wikipedia's article - Random assignment
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