Unit Test Review Sampling Methods

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What is Voluntary Response Bias?

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A type of bias that occurs when individuals select themselves to be part of a survey, often leading to an unrepresentative 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 Non-Response Bias?

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A bias that occurs when certain individuals do not respond to a survey, leading to a potential skew in the results.

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What is Undercoverage Bias?

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A bias that occurs when some groups in the population are left out of the selection process, resulting in an unrepresentative sample.

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What is Quantitative Data?

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Data that can be measured and expressed numerically, such as height, weight, or monthly paycheck amount.

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What is Qualitative Data?

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Data that describes characteristics or qualities and cannot be measured numerically, such as colors or names.

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What is a Population in statistics?

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The entire group of individuals or instances about whom we hope to learn.

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What is a Sample in statistics?

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A subset of the population selected for observation and analysis.

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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.

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What is a Random Sample?

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A sample that is selected from the population in such a way that every individual has an equal chance of being chosen.