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Estimating the Validity of a Multiple-Choice Test Item Having k Correct Alternatives

University of Southern California and University of Califarnia, Los Angeles

In various situations, a multiple-choice test item may have more than one correct alternative, and the goal is to determine how many correct alternatives an examinee actually knows. For a randomly sampled ex aminee, the validity of an item is defined as the prob ability of deciding that the examinee knows i correct alternatives, when in fact exactly i correct alternatives are known. This article describes how latent class models can be used to estimate this probability.

Applied Psychological Measurement, Vol. 9, No. 3, 311-316 (1985)
DOI: 10.1177/014662168500900309


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