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IRT Equating: A Flexible Alternative to Conventional Methods for Solving Practical Testing Problems.
Download full textCook, Linda L.; And Others – 1981
The purposes of this study are: (1) to compare the results of linear, equipercentile, frequency estimation equipercentile and item response theory (IRT) true formula score equating; and (2) to investigate the feasibility of using IRT methods to equate new forms of the Preliminary Scholastic Aptitude Test/National Merit Scholarship Qualifying Test…
Descriptors: College Entrance Examinations, Comparative Analysis, Equated Scores, Feasibility Studies
Cook, Linda L.; Douglass, James B. – 1982
The Preliminary Scholastic Aptitude Test/National Merit Scholarship Qualifying Test (PSAT/NMSQT) was equated to the Scholastic Aptitude Test (SAT) using item response theory (IRT) in a three-parameter logistic model. Estimated true formula score equating was used. Only the mathematical sections of the PSAT/NMSQT and SAT were used because the…
Descriptors: College Entrance Examinations, Equated Scores, Goodness of Fit, Item Analysis
