A survey about a new park is mailed to residents, and only those who feel strongly respond. Which problem is most likely?
Answer and explanation
Correct answer: A. Nonresponse bias
- Step 1: Those who respond differ from those who do not. Step 2. The sample no longer represents the population. Answer: nonresponse bias. Why not the others: Undercoverage excludes parts of the population from the sampling frame; confounding involves extraneous explanatory variables; and response bias arises from flawed question wording.
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