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Carlson, James E.; von Davier, Matthias – ETS Research Report Series, 2013
Few would doubt that ETS researchers have contributed more to the general topic of item response theory (IRT) than individuals from any other institution. In this report, we briefly review most of those contributions, dividing them into sections by decades of publication, beginning with early work by Fred Lord and Bert Green in the 1950s and…
Descriptors: Item Response Theory, Educational Research, Measurement Techniques, Psychometrics
Baghi, Heibatollah – 1990
The Maryland Functional Testing Program (MFTP) uses the Rasch model as the statistical framework for the analysis of test items and scores. This paper is designed to assist the reader in developing an understanding of the fit statistics in the Rasch model. Background materials on application of the Rasch model in statistical analysis of the MFTP…
Descriptors: Computer Assisted Testing, Computer Software, Equated Scores, Error of Measurement