Rasch Measurement - A Practical Medical Tool

June 7, 1996, was Residents' Research Day in the LSU Department of Medicine's Section of Physical Medicine & Rehabilitation. Three presentations featured Rasch measurement. The one by Yadav, et al. was selected best of the day. The presentations were:

Growth Factors vs. Conventional Therapy in the Treatment of Chronic Lower Extremity Diabetic Ulcers, by Rajesh Yadav, Jeffery Filiberto, Furqan Siddiqui, Joseph J. Biundo, Jr., Robert C. Mipro, Jr., and William P. Fisher, Jr.

This study compared the efficacy of topical growth factor versus conventional therapy in chronic nonhealing diabetic foot ulcers. Fifteen subjects were randomly assigned to growth factor or conventional treatment and followed for up to 35 weeks. The growth factor reduced wound size by an average of 71%, the conventional treatment by 46%. Physical and psychosocial health status were measured by the SF-20 and the data were fitted to a Rasch partial credit model. Persons treated with growth factor experienced improved health status. Those treated conventionally worsened.

Measuring Functional Status in Rehabilitation: Comparing FIM Item Calibrations from the Louisiana Rehabilitation Institute (LRI) and the Uniform Data System (UDS), by Maryam Qayum, Karen Ortenberg, Rolf Morstead, Furqan Siddiqui, Robert Mipro, Jr., and William P. Fisher, Jr.

This study showed that a sample of 70 rehabilitation patients measured with the Functional Independence Measure (FIM-SM) at a non- UDS facility produced FIM item calibrations statistically identical with those produced by a 15,000-patient UDS database.

Measuring Functional Status in Rehabilitation: Comparing FIM Patient Measures from the Louisiana Rehabilitation Institute (LRI) and the Uniform Data System (UDS), by Paul Mayes, Alejandro Perez, Robert C. Mipro, Jr., and William P. Fisher, Jr., PhD.

This study documented that the nonlinear score/measure relationships found to hold in data on 15,000 UDS patients is replicated in data on 70 patients from a non-UDS rehabilitation facility. The consistency of this relationship and of the FIM item order on the motor and cognitive variables, as shown in the Qayum, et al. presentation, justifies LRI use of the KeyFIM data collection worksheet.

Practical medical tool. Fisher WP Jr. … Rasch Measurement Transactions, 1996, 10:1 p.480

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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