Linking Parameter Estimates Derived From an Item Response Model Through Separate Calibrations


A regression procedure is developed to link simultaneously a very large number of item response theory (IRT) parameter estimates obtained from a large number of test forms, where each form has been separately calibrated and where forms can be linked on a pairwise basis by means of common items. An application is made to forms in which a two-parameter… (More)


  • Presentations referencing similar topics