Indices reflecting the probability that the observed similarity between the multiple-choice test responses of two examinees was due to chance are presented. Applications are presented for apprehending cheaters and for evaluating the prevalence of this form of cheating on an examination. (Author/JKS)

The development of an index reflecting the probability that the observed correspondence between multiple choice test responses of two examinees was due to chance in the absence of copying was previously reported. The present paper reports the implementation of a statistic requiring less restrictive underlying assumptions but more computation time…

The reliability and validity of multiple choice test scores resutling from empirical choice-weighting of alternatives was examined under two conditions: (1) examinees were told not to guess unless choices could be eliminated; and (2) examinees were told the total score would be the total number correct. Results favored the choice-weighting…

It has been demonstrated that corrected-for-guessing scores will be superior to number-right scores in providing estimates of examinee standing on the trait measured by a multiple-choice test, if it can be assumed that examinees can and will comply with the appropriate directions. The purpose of the present study was to test the validity of that…