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 process of selecting a representative sample

• The variability among statistics from different samples

• The bias that results from problems in the measurement process

What is selection bias?

• The bias that results from problems in the data analysis

• The bias that results from an unrepresentative sample

• The bias that results from problems in the measurement process

• The bias that results from problems in the survey design

What is undercoverage?

• When the survey sample is randomly selected

• When the survey sample accurately represents the population

• When the survey sample is too large

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

What is an example of undercoverage?

• The bias that results from problems in the measurement process

• The variability among statistics from different samples

• The process of selecting a representative sample

• The Literary Digest voter survey in the 1936 presidential election

What is nonresponse bias?

• The variability among statistics from different samples

• The bias that results from problems in the measurement process

• The bias that results from an unrepresentative sample

• The bias that results when respondents differ in meaningful ways from nonrespondents

What is an example of nonresponse bias?

• The Literary Digest voter survey in the 1936 presidential election

• The process of selecting a representative sample

• The variability among statistics from different samples

• The bias that results from problems in the measurement process

What is voluntary response bias?

• The variability among statistics from different samples

• The bias that results from problems in the measurement process

• The bias that results from an unrepresentative sample

• When sample members are self-selected volunteers

What is random sampling?

• A procedure for sampling from a population in which the selection of a sample unit is based on chance

• The bias that results from problems in the measurement process

• The bias that results from an unrepresentative sample

• The variability among statistics from different samples

What is response bias?

• The bias that results from problems in the measurement process

• The bias that results from an unrepresentative sample

• The bias that results from problems in the survey design

• The bias that results from problems in the data analysis

What is an example of response bias?

• The bias that results from an unrepresentative sample

• The variability among statistics from different samples

• The process of selecting a representative sample

• Leading questions