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?

Because the professor is asking students to evaluate his teaching on an exam he gives, students may worry that a negative response could affect their grade. That pressure can lead them to give answers they think the professor wants rather than their honest opinions. This is response bias, making “Students may not truthfully reply because they fear it will affect their grade” the strongest concern.

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