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Direct linkRoussos, Louis A.; Templin, Jonathan L.; Henson, Robert A. – Journal of Educational Measurement, 2007
This article describes a latent trait approach to skills diagnosis based on a particular variety of latent class models that employ item response functions (IRFs) as in typical item response theory (IRT) models. To enable and encourage comparisons with other approaches, this description is provided in terms of the main components of any…
Descriptors: Validity, Identification, Psychometrics, Item Response Theory
