If a researcher does not obtain complete information about a population, or leaves some segments of the population out, which bias may be present in the results?

Question

Quizplus · Accepted Answer

If a researcher leaves some segments of the population out or does not obtain complete information about a population, undercoverage bias may be present in the results. This means that the sample obtained may not accurately represent the entire population, leading to biased conclusions. Nonresponse bias refers to biases that may arise from those who choose not to participate in a study, while response bias refers to biases introduced by the way questions are asked or answered. No bias would only be present if the sample obtained is truly representative of the population of interest.

If a Researcher Does Not Obtain Complete Information About a Population