Question

a professor surveys his students about their opinions on how well he taught the course. he puts this survey on the last page of his final exam. which type of bias will most likely have the strongest effect on the survey results?
not all students will have the access needed to find the survey.
students may not truthfully reply because they fear it will affect their grade.
students may not understand the wording used in the survey.
not all students will be represented in the survey sample.

Explanation:

The survey is on the final exam's last page. Students may lie about the professor's teaching because they fear negative responses could impact their grades (response bias due to fear of grade consequences). Other options: access isn't an issue as they're taking the exam, wording misunderstanding is less likely than grade - related fear, and sample representation isn't the main bias here compared to untruthful responses from grade fear.

Answer:

B. Students may not truthfully reply because they fear it will affect their grade.