Bias and Sampling Methods

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What is Convenience Sampling?

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A sampling method where individuals are selected based on their easy availability and proximity to the researcher, leading to potential bias.

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What is Voluntary Response Sampling?

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A sampling method where individuals choose to participate in a survey or study, often leading to bias as those with strong opinions are more likely to respond.

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What is Nonresponse Bias?

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A type of bias that occurs when individuals selected for the sample cannot be contacted or refuse to participate, potentially skewing results.

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What is Undercoverage?

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A sampling bias that occurs when some members of the population are inadequately represented in the sample.

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What is Response Bias?

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A bias that occurs when respondents provide inaccurate answers due to misunderstanding, misinterpretation, or social desirability.

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What is Simple Random Sampling?

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A sampling method where every member of the population has an equal chance of being selected, minimizing bias.

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What is Systematic Sampling?

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A sampling method where members of the population are selected at regular intervals, such as every nth individual.

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What is the impact of Convenience Sampling on research results?

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It can lead to skewed results as the sample may not accurately represent the entire population.

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How can Nonresponse Bias affect survey results?

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It can lead to an unrepresentative sample if the individuals who do not respond differ significantly from those who do.

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What is the difference between Voluntary Response and Convenience Sampling?

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Voluntary Response relies on individuals choosing to participate, while Convenience Sampling selects individuals based on ease of access.