Question

Which of the following best represents the highest potential for nonresponse bias in a sampling strategy? Describe why this option should be considered nonresponse a. Surveying a population on Sunday mornings for a new needs assessment b. Submitting a post online advertising the need for participants in a new study c. Asking people leaving a local election to take part in an exit poll d. Posting a leaflet in the elevator of a university asking for students to take part in a paid study

Answer 1

c. Asking people leaving a local election to take part in an exit poll

Explanation:

Asking people leaving a local election to take part in an exit poll best represents the highest potential for nonresponse bias in a sampling strategy because of the importance of the local election compared to the exit polls.

It is worthy of note that nonresponse bias occurs when some respondents included in the sample do not respond to the survey. The major difference here is that the error comes from an absence of respondents not the collection of erroneous data. ...

Oftentimes, this form of bias is created by refusals to participate for one reason or another or the inability to reach some respondents.