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Direct linkHan, Kyung T. – Applied Psychological Measurement, 2009
This article provides a brief description of a Windows application called IRTEQ. IRTEQ employs an intuitive, user-friendly graphic user interface that can rescale one test form to another by using various item response theory (IRT) scaling methods. It supports various IRT models for test forms. It can also equate test scores on the scale of one…
Descriptors: Item Response Theory, Scaling, True Scores, Equated Scores
Download full textMoses, Tim P.; von Davier, Alina A. – ETS Research Report Series, 2006
The two purposes of this paper are to provide a SAS IML macro that performs loglinear smoothing and to apply this macro to loglinear smoothing problems that have not been extensively discussed in the test-equating literature. The SAS macro is demonstrated on univariate, bivariate, and trivariate smoothing problems. The univariate and bivariate…
Descriptors: Statistical Analysis, Statistical Distributions, Equated Scores, Models
