Research Framework - Scoring and Reporting
Equating
This research is concerned with how best to determine a one-to-one relationship between scores on different test forms so that scores on the two forms can be compared on a common scale.
Research
Developing a Common Metric in IRT When No Direct Link Exists, by Peter Baldwin, Robert R. Keller, Robert Cook, and Su G. Baldwin (2010)
Small Sample Equating or Score Concordance: Validation Evidences, by Kinge K. Mbella, Robert R. Keller, and Liz Burton (2010), Presentation at the 2010 AERA/NCME Annual Meeting, Denver, CO
A Balancing Act: Common Items Nonequivalent Groups (CINEG) Equating Item Selection, by Tia M. Sukin and WonSuk Kim, Presentation at the 2010 AERA/NCME Annual Meeting, Denver, CO
Establishing a Scale for Accommodated Test Forms and Special Populations Using IRT, by Robert R. Keller, Lisa A. Keller, Jennifer L. Dunn, Tyler J. Lonczak, and Louis A. Roussos, Presentation at the 2010 AERA/NCME Annual Meeting, Denver, CO
The Examination of the Classification of Students into Performance Categories by Four Different Equating Methods, by Polly Parker, Keller, Lisa A. Keller, and Robert R. Keller (2009)
The Effect of Changing Content on IRT Scaling Methods, by Lisa A. Keller and Robert R. Keller (2008), Presentation at the 2008 AERA/NCME Annual Meeting
Evaluation of Equating Items Using DFIT by Mike Nering and Wonsuk Kim (2007), Paper presented at the 2007 AERA Annual Meeting, Chicago, IL
What Breaks the Equating? A Preliminary Investigation Into Threats to a Five-Year Equating Chain, by Robert R. Keller, Wonsuk Kim, Michael Nering, and Lisa A. Keller (2007), Paper presented at the 2007 AERA Annual Meeting, Chicago, IL
Theoretically Grounded Linking and Equating for Mastery/Non-Mastery Skills Diagnosis Models, by Louis Roussos, Jonathan Templin, and Robert Henson (2005), Unpublished ETS Project Report, Princeton, NJ
The Effect of Anchor Test Composition on the Accuracy of Classifying Examinees, by Robert R. Keller and Lisa A. Keller (2003), University of Massachusetts
