Types of Bias

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What is undercoverage bias?

Back

Undercoverage bias occurs when some members of the population are inadequately represented in the sample, leading to a skewed understanding of the overall population's opinions.

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What is voluntary response bias?

Back

Voluntary response bias happens when individuals select themselves to participate in a survey, often leading to an overrepresentation of strong opinions.

Tags

CCSS.HSS.IC.B.3

Front

What is response bias?

Back

Response bias refers to the tendency of respondents to answer questions inaccurately or falsely, often due to the wording of the question or social desirability.

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CCSS.RL.5.6

Front

What is non-response bias?

Back

Non-response bias occurs when a significant number of people selected for the survey do not respond, which can lead to a biased sample.

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What is a sample in statistics?

Back

A sample is a smaller group selected from a larger population, used to make inferences about the population as a whole.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a population in statistics?

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A population is the entire group of individuals or instances about whom we hope to learn.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is an unbiased question?

Back

An unbiased question is phrased in a neutral way that does not lead respondents toward a particular answer.

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CCSS.RI.1.4

CCSS.RI.2.1

CCSS.RI.3.1

CCSS.RL.2.1

CCSS.RL.3.1

Front

What is a biased question?

Back

A biased question is phrased in a way that suggests a particular answer or influences the respondent's opinion.

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CCSS.RL.11-12.6

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What is the importance of random sampling?

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Random sampling is crucial because it helps ensure that every member of the population has an equal chance of being selected, reducing bias.

Tags

CCSS.HSS.IC.B.3

Front

What is sampling error?

Back

Sampling error is the difference between the results obtained from a sample and the actual values in the population, often due to chance.