What is non-response bias?
A type of bias that occurs when some participants in a study do not respond or participate, potentially skewing the results
non-response bias explained in plain English
Analogy
Imagine trying to understand the average height of people in a city by only measuring the heights of those who attend a particular festival. If the festival is mostly attended by young people, your results will be biased towards the heights of young people, rather than the entire city's population
Example
A survey about a new policy is sent to all residents of a town, but only those who are strongly opposed or in favor of the policy respond. The results may not accurately reflect the opinions of the entire town
How is non-response bias used?
Common misconceptions about non-response bias
History
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