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Peer reviewedMislevy, Robert J.; Wilson, Mark – Psychometrika, 1996
Marginal maximum likelihood estimation equations are derived for the structural parameters of the Saltus model, and a computing approximation is suggested based on the EM algorithm. The solution is illustrated with simulated data and an example from the domain of mixed number subtraction. (SLD)
Descriptors: Bayesian Statistics, Cognitive Tests, Equations (Mathematics), Individual Development
