Comparison of two indices of answer copying, one using only wrong responses and the other using right and wrong responses for six tests taken by from 910 to 1,154 college students suggests that indices of copying may perform differentially well according to the size of scores of examinee pairs evaluated. (SLD)

Practical and effective methods for detecting copying of multiple-choice test responses have been available for many years. These methods have been used routinely by large admissions and licensing testing programs. However, these methods are seldom applied in the areas of standardized or classroom testing in schools or colleges, and knowledge…