RMT 21:1 Notes and Quotes

False Concreteness

Peter Drucker described years ago ... "the illusion of false concreteness." This is believing that a result or recommendation presented with figures showing multiple decimal places is somehow more accurate than a judgment call presented in words alone.


Clinical Significance

"Evaluations of the outcomes of psychological treatments are favorably enhanced when the published report includes not only statistical significance and the required effect size but also a consideration of clinical significance."

Kendall, P.C. (1997). Editorial. Journal of Consulting and Clinical Psychology, 65, 3-5.

KIDMAPs via Excel

Tsair-Wei Chien of the Chi-Mei Medical Center, Taiwan has made available an Excel add-in which constructs KIDMAPs for individual examinees. These Excel routines for dichotomous and polytomous data call Winsteps to compute persons measures, etc. The Excel routines are designed for use by classroom teachers.


2006-2007 Annual Report for the Rasch SIG

Edward W. Wolfe, Secretary/Treasurer

The Rasch SIG annual business meeting was held during the Annual Meeting of AERA in Chicago, IL on April 10th, 2007. SIG President Tom O'Neill facilitated the meeting. Secretary/Treasurer Ed Wolfe presented the following financial and membership statement:

Opening (April 2006)$5033.15
Closing March 2007)$6880.15

Expenses included the AERA SIG administration fee ($225) and payment of the website hosting fees ($198). Deposits were made for 138 memberships paid during 2006-2007. Current membership of the SIG is 172.

Upcoming SIG business includes completion of the Program Chair form by 4/13/07. This task has been completed, with Sharon Solloway and Ed Wolfe agreeing to serve as Co-Chairs for the 2008 program. Sharon will serve one more year (served that role in 2007 and will serve in 2008), and Ed will serve for two years (2008 & 2009 programs), with Dimiter Dimitrov agreeing to begin serving a two-year appointment as Co-Chair during the second year of Ed's appointment (for the 2009 and 2010 programs). In addition to this item of business, by 5/11/07 the officers will submit the Officer Designation form to AERA. Tom O'Neill and Ed Wolfe will complete the second year of their two-year terms in 2008.

William Fisher and Sharon Solloway (2007 Program Co-Chairs) reported that they received 37 paper proposals and 2 session proposals. All but 6 of the proposal were reviewed by 3 reviewers. 34 papers were slotted into 6 paper sessions and 2 paper discussion sessions.

Two new items were presented at the meeting. This fall, the SIG will hold elections, so if you'd like to volunteer to serve as the SIG Chair or Secretary/Treasurer, please contact Ed Wolfe or Tom O'Neill.

Next year IOMW will be held in New York, hosted by Data Recognition Corporation: www.jampress.org
JAM library recommendation form

The meeting concluded with a presentation by George Engelhard that described Historical Trends in Measurement Research. Following the meeting, the group met at the Manaco Hotel for a reception and dinner hosted by Pearson VUE.

RMT 21:1 Notes and Quotes. … Rasch Measurement Transactions, 2007, 21:1

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), www.statistics.com
Aug. 11 - Sept. 8, 2023, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com


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