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Direct linkvan der Linden, Wim J. – Journal of Educational and Behavioral Statistics, 2009
A bivariate lognormal model for the distribution of the response times on a test by a pair of test takers is presented. As the model has parameters for the item effects on the response times, its correlation parameter automatically corrects for the spuriousness in the observed correlation between the response times of different test takers because…
Descriptors: Cheating, Models, Reaction Time, Correlation
