Voluntary response bias occurs when individuals self-select into a survey, often leading to an unrepresentative sample. This type of bias can significantly affect survey results by skewing responses towards those with strong opinions. Understanding different biases, like under-coverage and wording-effect bias, is key for conducting effective surveys. ;
The correct answer to the question is voluntary response bias , which is the bias created when individuals self-select into a survey, often resulting in skewed results. Understanding this type of bias is crucial for interpreting survey data accurately. Other types of bias, such as under-coverage and wording-effect bias, should also be considered when designing surveys.
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