SAMPLING BIAS Meaning and
Definition
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Sampling bias refers to a systematic distortion or error in the selection process of a sample from a population, resulting in a sample that does not accurately represent the population. It occurs when certain individuals or groups in a population have a higher or lower probability of being included in the sample, leading to an imbalance and invalidating statistical inferences.
Sampling bias can arise due to various factors, such as the sampling method used, non-response from certain individuals, or the presence of hidden variables that affect the selection process. It can result in an overrepresentation or underrepresentation of specific characteristics, leading to a skewed estimation of the population parameters.
For example, if a survey on political attitudes is conducted only through online platforms, it may exclude individuals who do not have access to or engage with the internet, thus introducing sampling bias. Similarly, if a study on the effects of a new drug only includes participants from a specific age range, the results may not be applicable or generalizable to the broader population.
Sampling bias can significantly undermine the external validity and generalizability of research findings. It is a concern in various fields, including psychology, sociology, economics, and public health, as it impacts the accuracy and reliability of conclusions drawn from data. Researchers employ various techniques, such as random sampling, stratified sampling, or cluster sampling, to minimize or account for sampling bias and ensure a representative sample.
Common Misspellings for SAMPLING BIAS
- aampling bias
- zampling bias
- xampling bias
- dampling bias
- eampling bias
- wampling bias
- szmpling bias
- ssmpling bias
- swmpling bias
- sqmpling bias
- sanpling bias
- sakpling bias
- sajpling bias
- samoling bias
- samlling bias
- sam-ling bias
- sam0ling bias
- sampking bias
- sampping bias
- sampoing bias
Etymology of SAMPLING BIAS
The word "sampling bias" is composed of two components: "sampling" and "bias".
1. "Sampling" refers to the act of selecting a subset from a larger population to gather data and make inferences about the whole population. The term is derived from the Middle English word "sampler", which originally referred to a person who collected soil or water samples for analysis. Over time, the word "sampler" evolved to include the act of selecting a representative subset for analysis or experimentation.
2. "Bias" refers to the tendency or inclination to favor one particular outcome or viewpoint over others. The term originated from the Old French word "bias", which means 'oblique', 'sideways', or 'at an angle'. In the context of statistics and research, "bias" denotes a systematic error in the sampling process that leads to an unrepresentative or skewed sample.
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