Education Commons^™

The Trouble With Test Banks, Harvey Richman, Molly Hrezo

Perspectives In Learning

We compared the psychometrics of quiz questions randomly selected from a test bank with the psychometrics of quiz questions the instructor had selected from the bank for quality and modified (if necessary). On multiple psychometric indices, the instructor selected/modified questions were superior to questions randomly selected from the test bank. Most notably, when compared with instructor written/modified questions, randomly selected bank questions were nearly 6.5 times more likely to contain a distractor that drew more responses than the correct answer. Details and implications are discussed.