An in-person survey was given to students at the end of a semester course to determine their satisfaction with the instructor. The instructor asked every other student to rate their satisfaction of the course’s teaching in a one-on-one interview.

Question

Which bias is exhibited in the survey?

A
response bias

B
randomization bias

C
selection bias

D
question order bias

Answer 1

The bias exhibited in the survey described is C: selection bias.

This is because the instructor only selected "every other student" to participate in the survey, which may not represent the views of all students in the course. As a result, the sample may not accurately reflect the overall satisfaction of all students, leading to potential bias in the results.