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Download full textMislevy, Robert J.; Wilson, Mark – 1992
Standard item response theory (IRT) models posit latent variables to account for regularities in students' performance on test items. They can accommodate learning only if the expected changes in performance are smooth, and, in an appropriate metric, uniform over items. Wilson's "Saltus" model extends the ideas of IRT to development that…
Descriptors: Bayesian Statistics, Change, Development, Item Response Theory
