Ideas from MOMS, June 1990

"Interesting and provocative" summarizes the papers presented at the semi-annual Midwest Objective Measurement Seminar (MOMS), held on Friday, June 1st, 1990 at the University of Chicago, with the able and amiable Ben Wright as Chair.

Mike Seltzer and Ken Frank showed how the "Fourth Grade Slump" in reading skills, widely reported by users of the Iowa Test of Basic Skills, is a figment of deficient measurement procedures. They demonstrated that inadequate test equating, combined with non-linear "grade equivalent" (GE) scaling, necessarily produces incorrect results. In Chicago, rather than a slump, there has been a slight Fourth Grade "surge"! Worse, when GEs are mistakenly regarded as measures, students appear to become more different in test performance at higher grades, when, in fact, they become more similar.

The application of Rasch techniques to a variety of measurement problems was described including Artistic Judgment (Dave Schroeder), Medical Patient Tracking (William Fisher), Computer-Adaptive Testing (Betty Bergstrom), Political Participation (Filemon Cerda) and Job Performance (Terry Schumacher).

Ron Zybura discussed the development of a test of prepositional knowledge among retarded children, aimed at improving the assessment and thus instruction of the retarded. His concern was to realize empirically a developmentally-based rating scale which included conceptually important preposition differences rarely observable in the general population. But rarely observed categories "disorder" the step threshold calibrations. Since intellectual development among the retarded is slower, such categories have a greater opportunity to be observed and so can be more clearly seen as developmental stages.

"The sociology of knowledge has now brought us to recognize that scholars themselves have systems of values of which they should be fully conscious, and that when they are so aware they are better equipped to see that to omit the question of authority, ancient or modern, for their work is to fall short of being fully scientific."
James A. Sanders in Canon and Community, 1984, Philadelphia, Fortress Press, p. 21

Ideas from MOMS, June 1990, J Linacre … Rasch Measurement Transactions, 1990, 4:2 p. 106

Rasch Books and Publications
Invariant Measurement: Using Rasch Models in the Social, Behavioral, and Health Sciences, 2nd Edn. George Engelhard, Jr. & Jue Wang	Applying the Rasch Model (Winsteps, Facets) 4th Ed., Bond, Yan, Heene	Advances in Rasch Analyses in the Human Sciences (Winsteps, Facets) 1st Ed., Boone, Staver	Advances in Applications of Rasch Measurement in Science Education, X. Liu & W. J. Boone	Rasch Analysis in the Human Sciences (Winsteps) Boone, Staver, Yale
Introduction to Many-Facet Rasch Measurement (Facets), Thomas Eckes	Statistical Analyses for Language Testers (Facets), Rita Green	Invariant Measurement with Raters and Rating Scales: Rasch Models for Rater-Mediated Assessments (Facets), George Engelhard, Jr. & Stefanie Wind	Aplicação do Modelo de Rasch (Português), de Bond, Trevor G., Fox, Christine M	Appliquer le modèle de Rasch: Défis et pistes de solution (Winsteps) E. Dionne, S. Béland
Exploring Rating Scale Functioning for Survey Research (R, Facets), Stefanie Wind	Rasch Measurement: Applications, Khine	Winsteps Tutorials - free Facets Tutorials - free	Many-Facet Rasch Measurement (Facets) - free, J.M. Linacre	Fairness, Justice and Language Assessment (Winsteps, Facets), McNamara, Knoch, Fan
Other Rasch-Related Resources: Rasch Measurement YouTube Channel
Rasch Measurement Transactions & Rasch Measurement research papers - free	An Introduction to the Rasch Model with Examples in R (eRm, etc.), Debelak, Strobl, Zeigenfuse	Rasch Measurement Theory Analysis in R, Wind, Hua	Applying the Rasch Model in Social Sciences Using R, Lamprianou	El modelo métrico de Rasch: Fundamentación, implementación e interpretación de la medida en ciencias sociales (Spanish Edition), Manuel González-Montesinos M.
Rasch Models: Foundations, Recent Developments, and Applications, Fischer & Molenaar	Probabilistic Models for Some Intelligence and Attainment Tests, Georg Rasch	Rasch Models for Measurement, David Andrich	Constructing Measures, Mark Wilson	Best Test Design - free, Wright & Stone Rating Scale Analysis - free, Wright & Masters
Virtual Standard Setting: Setting Cut Scores, Charalambos Kollias	Diseño de Mejores Pruebas - free, Spanish Best Test Design	A Course in Rasch Measurement Theory, Andrich, Marais	Rasch Models in Health, Christensen, Kreiner, Mesba	Multivariate and Mixture Distribution Rasch Models, von Davier, Carstensen

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