Bias in Survey Sampling

What is bias in survey sampling?

• The tendency of a sample statistic to systematically over- or under-estimate a population parameter

• The bias that results from measurement error

• The process of selecting a representative sample

• The bias that results from an unrepresentative sample

What is undercoverage bias?

• When some members of the population are inadequately represented in the sample

• When the wording of the question is loaded to unduly favor one response

• When sample members are self-selected volunteers

• When respondents differ in meaningful ways from nonrespondents

What is nonresponse bias?

• When respondents differ in meaningful ways from nonrespondents

• When sample members are self-selected volunteers

• When some members of the population are inadequately represented in the sample

• When the wording of the question is loaded to unduly favor one response

What is voluntary response bias?

• When sample members are self-selected volunteers

• When the wording of the question is loaded to unduly favor one response

• When respondents differ in meaningful ways from nonrespondents

• When some members of the population are inadequately represented in the sample

What is random sampling?

• A procedure for sampling from a population in which the selection of a sample unit is based on chance and every element of the population has a known, non-zero probability of being selected

• The bias that results from measurement error

• The tendency of a sample statistic to systematically over- or under-estimate a population parameter

• The bias that results from an unrepresentative sample

What is response bias?

• The process of selecting a representative sample

• The tendency of a sample statistic to systematically over- or under-estimate a population parameter

• The bias that results from problems in the measurement process

• The bias that results from an unrepresentative sample

What are leading questions?

• Questions that are self-selected by sample members

• Questions that are loaded in some way to unduly favor one response over another

• Questions that result in respondents differing in meaningful ways from nonrespondents

• Questions that are biased towards a specific population

What is social desirability?

• The tendency of respondents to give socially desirable responses

• The tendency of a sample statistic to systematically over- or under-estimate a population parameter

• The bias that results from problems in the measurement process

• The bias that results from an unrepresentative sample

What is sampling error?

• The variability among statistics from different samples

• The process of selecting a representative sample

• The tendency of a sample statistic to systematically over- or under-estimate a population parameter

• The bias that results from problems in the measurement process

Does increasing the sample size reduce survey bias?

• It depends on the type of bias

• No

• Increasing the sample size has no effect on survey bias

• Yes