A researcher collects data on the length of time callers have to wait to have their phone call to an advice centre answered. He visits every Thursday for 6 weeks. What type of bias is he most likely to encounter?
A) Structural bias
B) Recording bias
C) Selection bias
D) Interviewer bias

Question

Quizplus · Accepted Answer

The researcher is likely to encounter selection bias because he is only collecting data on one day of the week (Thursday), which may not be representative of the entire week. This could lead to skewed results that do not accurately reflect the average wait time for callers on other days.

A Researcher Collects Data on the Length of Time Callers