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Helmstadter, Gerald C. – 1974
Bayes Theorem leads to three indexes of item effectiveness: 1) probability that an examinee knows the content given that the correct response was selected; 2) probability that an examinee does not know that content given that an incorrect response was selected; and 3) probability of making a correct decision about the examinee's knowledge given…
Descriptors: Achievement Tests, Bayesian Statistics, Comparative Analysis, Criterion Referenced Tests