Message from Rasch SIG Chair, March 2014

Greetings Rasch SIG colleagues,

I hope 2014 finds you well. In lieu of AERA fast approaching, I wanted to share a few brief comments. First, I wanted to acknowledge the efforts our Program Co-Chairs Kelly Bradley and Jessica Cunningham for their work in putting together this year's Rasch Measurement SIG sessions. This year's program includes several paper and poster sessions focusing on everything from instrument development to item and person fit and Rasch-based modeling approaches. I hope you'll make every effort to seek out these events if you'll be able to attend AERA.

I'm also quite excited to report that David Andrich has graciously agreed to speak at this year's business meeting. The title of his talk is "On Rasch Measurement Theory" in which he presents a timely discourse on the work of Georg Rasch:

"This presentation argues that the contribution and significance of the work of Georg Rasch to the understanding and practice of social measurement is both understated and misunderstood when it is seen primarily as an exercise in response modeling. It is argued that a complex of understandings of his contribution, which entails (i) an a-priori criterion of invariance of comparisons within a specified frame of reference, (ii) rendering this criterion in the form of class of probabilistic models which have sufficient statistics for all parameters, (iii) articulating these models with a body of knowledge of statistical inference, and (iv) anchoring the models in an empirical paradigm of item and test construction, justifies it being referred to as the Rasch Measurement Theory. In making the case, the paper makes some comparisons and contrasts with the principles of Classical Test Theory and Item Response Theory and suggests that both these approaches to social measurement have less of a claim to being called a theory than the approach by Rasch."

Hopefully his abstract whets your appetite a bit and will have you marking your calendar accordingly. As with recent history, you can expect the business meeting to be in line with the past few in that I will be providing a brief State of the SIG address prior to introducing David. The meeting is scheduled for Thursday, April 3rd from 6:15pm to 7:45pm. Hors d'oeuvres and a cash bar will be provided. I will send out more detailed information on all presentations and logistics prior to the AERA conference.

I also wanted to acknowledge the fact that we have just wrapped up an election which will mark the first implementation of SIG bylaws. Specifically we'll be welcoming three newly elected SIG officers. Of course results are yet to be tallied and delivered, so I'm afraid I have nothing official to report as of this publication. But stay tuned, as we shall know within the month.

Thanks kindly. I look forward to seeing you in Philadelphia!

Tim O'Neil
Rasch SIG Chair


Message from Rasch SIG Chair. T. O'Neil … Rasch Measurement Transactions, 2014, 27:4 p. 1444-5


Please help with Standard Dataset 4: Andrich Rating Scale Model



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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Go to Institute for Objective Measurement Home Page. The Rasch Measurement SIG (AERA) thanks the Institute for Objective Measurement for inviting the publication of Rasch Measurement Transactions on the Institute's website, www.rasch.org.

Coming Rasch-related Events
June 30 - July 29, 2017, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Further Topics (E. Smith, Winsteps), www.statistics.com
July 31 - Aug. 3, 2017, Mon.-Thurs. Joint IMEKO TC1-TC7-TC13 Symposium 2017: Measurement Science challenges in Natural and Social Sciences, Rio de Janeiro, Brazil, imeko-tc7-rio.org.br
Aug. 7-9, 2017, Mon-Wed. In-person workshop and research coloquium: Effect size of family and school indexes in writing competence using TERCE data (C. Pardo, A. Atorressi, Winsteps), Bariloche Argentina. Carlos Pardo, Universidad Catòlica de Colombia
Aug. 7-9, 2017, Mon-Wed. PROMS 2017: Pacific Rim Objective Measurement Symposium, Sabah, Borneo, Malaysia, proms.promsociety.org/2017/
Aug. 10, 2017, Thurs. In-person Winsteps Training Workshop (M. Linacre, Winsteps), Sydney, Australia. www.winsteps.com/sydneyws.htm
Aug. 11 - Sept. 8, 2017, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com
Aug. 18-21, 2017, Fri.-Mon. IACAT 2017: International Association for Computerized Adaptive Testing, Niigata, Japan, iacat.org
Sept. 15-16, 2017, Fri.-Sat. IOMC 2017: International Outcome Measurement Conference, Chicago, jampress.org/iomc2017.htm
Oct. 13 - Nov. 10, 2017, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
Jan. 5 - Feb. 2, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
Jan. 10-16, 2018, Wed.-Tues. In-person workshop: Advanced Course in Rasch Measurement Theory and the application of RUMM2030, Perth, Australia (D. Andrich), Announcement
Jan. 17-19, 2018, Wed.-Fri. Rasch Conference: Seventh International Conference on Probabilistic Models for Measurement, Matilda Bay Club, Perth, Australia, Website
April 13-17, 2018, Fri.-Tues. AERA, New York, NY, www.aera.net
May 25 - June 22, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
June 29 - July 27, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Further Topics (E. Smith, Winsteps), www.statistics.com
Aug. 10 - Sept. 7, 2018, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com
Oct. 12 - Nov. 9, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
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