Chicago Objective Measurement Table

The meeting held on February 21, 2002 at the American Society for Clinical Pathologists was attended by Nikolaus Bezruczko, Patrick Fisher, Tom O'Neill, Joan Stelmack, Matthew Enos, Johnna Gveorgvieva, Lidia Dobriam, Chris Condon, Gaston Mbateng, Mary Lunz and Donna Tatum, representing Hines VA Hospital, University of Illinois, Rehabilitation Institute of Chicago, American Society for Clinical Pathologists, National Council for State Boards of Nursing, Johnson O'Connor Research Foundation, Inc, Measurement Research Associates, Inc, and Measurement & Evaluation Consulting.

Measurement discussion focused on Donna Tatum's presentation "Analyzing Longitudinal Data: Problems and Solutions" which scale definition and invariance issues including, methods of establishing step invariance, and item migration in longitudinal constructs. She outlined a procedure, and compared it with an alternative by Wolfe & Chiu. A underlying issue concerns measurement integrity which dictates that changes in item order not be represented in scale structure. Constructs can change, but units must remain constant.

COMET is open to researchers, faculty, and students committed to advancing objective measurement methods. For information contact Nikolaus Bezruczko

Planned meetings include:

April 17th: Joan Stelmack, OD, Blind Rehabilitation Center, Hines VA and Prof. Robert W. Massof, PhD, Director Lions Vision Research and Rehabilitation Center, Johns Hopkins Wilmer Eye Institute, will present "Item Reordering as a Consequence of Rehabilitation".

Sept.: Christine Chen, Rehabilitation Foundation.

Oct.: Tom O'Neill, NCSBN

Nov.: Elizabeth Hahn, Northwestern Univ. Hospital.

COMET: Chicago Objective Measurement Table. Bezruczko N. … 15:4 p. 830

COMET: Chicago Objective Measurement Table Bezruczko N. … Rasch Measurement Transactions, 2002, 15:4 p. 830

Rasch Publications
Rasch Measurement Transactions (free, online) Rasch Measurement research papers (free, online) Probabilistic Models for Some Intelligence and Attainment Tests, Georg Rasch Applying the Rasch Model 3rd. Ed., Bond & Fox Best Test Design, Wright & Stone
Rating Scale Analysis, Wright & Masters Introduction to Rasch Measurement, E. Smith & R. Smith Introduction to Many-Facet Rasch Measurement, Thomas Eckes Invariant Measurement: Using Rasch Models in the Social, Behavioral, and Health Sciences, George Engelhard, Jr. Statistical Analyses for Language Testers, Rita Green
Rasch Models: Foundations, Recent Developments, and Applications, Fischer & Molenaar Journal of Applied Measurement Rasch models for measurement, David Andrich Constructing Measures, Mark Wilson Rasch Analysis in the Human Sciences, Boone, Stave, Yale
in Spanish: Análisis de Rasch para todos, Agustín Tristán Mediciones, Posicionamientos y Diagnósticos Competitivos, Juan Ramón Oreja Rodríguez

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Coming Rasch-related Events
June 23 - July 21, 2023, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Further Topics (E. Smith, Winsteps),
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