Linking Multidimensional Item Calibrations
نویسندگان
چکیده
منابع مشابه
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 logistic model is applied to dichotomous ite...
متن کاملLinking Item Response Model Parameters
With a few exceptions, the problem of linking item response model parameters from different item calibrations has been conceptualized as an instance of the problem of test equating scores on different test forms. This paper argues, however, that the use of item response models does not require any test score equating. Instead, it involves the necessity of parameter linking due to a fundamental ...
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In multidimensional item response theory (MIRT), it is possible for the estimate of a subject’s ability in some dimension to decrease after they have answered a question correctly. This paper investigates how and when this type of paradoxical result can occur. We demonstrate that many response models and statistical estimates can produce paradoxical results and that in the popular class of line...
متن کاملLinking Item Parameters to a Base Scale
This paper compares three methods of item calibration—concurrent calibration, separate calibration with linking, and fixed item parameter calibration—that are frequently used for linking item parameters to a base scale. Concurrent and separate calibrations were implemented using BILOG-MG. The Stocking and Lord (1983) characteristic curve method of parameter linking was used in conjunction with ...
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Data warehouses structure data in multidimensional cubes, where dimensions specify different ways in which measures in facts may be viewed, aggregated, and sorted. It is essential for data analysts to combine data from heterogeneous multidimensional cubes to enhance their analysis capabilities. For this, users are restricted in using only shared dimensions for navigating related multidimensiona...
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ژورنال
عنوان ژورنال: Applied Psychological Measurement
سال: 1996
ISSN: 0146-6216,1552-3497
DOI: 10.1177/014662169602000407