Biased Selection
Biased Selection
Biased Selection (pronunciation: /ˈbaɪ.əst sɪˈlɛkʃən/) is a term used in various fields of study, including genetics, epidemiology, and statistics. It refers to a systematic deviation from a truly random selection of a sample from a population. This can lead to a sample that is not representative of the population, which can in turn lead to skewed results and inaccurate conclusions.
Etymology
The term "biased selection" is derived from the English words "bias" and "selection". "Bias" (from the French biais, meaning "slant, oblique") refers to a tendency or inclination that influences judgment or decision-making. "Selection" (from the Latin selectio, meaning "choosing, selection") refers to the act of choosing or selecting.
Related Terms
- Selection Bias: A type of bias that occurs when the method of selection used to draw a sample population causes the sample to differ significantly from the overall population.
- Sampling Bias: A bias in which a sample is collected in such a way that some members of the intended population are less likely to be included than others.
- Confounding Variable: A variable that influences both the dependent variable and independent variable, causing a spurious association.
- Observational Study: A type of study in which individuals are observed or certain outcomes are measured, without trying to affect the outcome.
See Also
External links
- Medical encyclopedia article on Biased Selection
- Wikipedia's article - Biased Selection
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