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Kim, Seonghoon; Kolen, Michael J. – Journal of Educational and Behavioral Statistics, 2007
Under item response theory, the characteristic curve methods (Haebara and Stocking-Lord methods) are used to link two ability scales from separate calibrations. The linking methods use their respective criterion functions that can be defined differently according to the symmetry- and distribution-related schemes. The symmetry-related scheme…
Descriptors: Measures (Individuals), Item Response Theory, Simulation, Comparative Analysis