yellow brick road to stats heaven

~ a loose collection of statistical and quantitative research material for fun and enrichment ~

by roland b. stark

Statistical Methods of Detecting Copying on Multiple Choice Tests: A Review and an Application


Researchers consistently elicit surprise and dismay when they report on the pervasiveness of academic dishonesty. Cheating on examinations, and in particular the practice of copying answers from other students, has spurred educators to devise statistical methods that can expose it. This paper surveys the main issues in the copy detection field, examining four methods in detail. I apply these techniques to data taken from a university examination, and I compare the four with respect to ease of calculation, prevalence of use, and rates of sensitivity and specificity. I also give an overview of other copy detection methods, discussing key issues to consider, limitations that apply, and factors that inhibit the adoption of these techniques. An appendix briefly touches on the detection of cheating by impersonation and by improper erasures.

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Word Cloud derived from frequencies of word use in the paper.

Cheating Paper - Word Cloud

copyright 2007-2012 by roland b. stark.

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