Chapter 10 Reference & Other Good Stuff

10.1 Rasch Glossary

10.1.1 Rasch Models

Abbreviation	Description	Citation
DRM	Dichotomous Rasch Model	Rasch(1960/1980)
RSM	Rating Scale Model	Andrich (1978)
MFRM	Many-facet Rasch Model	NA
PCM	Partial Credit Model	Master(1982)

Andrich, D. (1978). “A rating formulation for ordered response categories.” Psychometrika,43(4),561–573.doi:10.1007/BF02293814

Masters, G.N. A rasch model for partial credit scoring. Psychometrika 47, 149–174 (1982). https://doi.org/10.1007/BF02296272

Rasch, G. (1960/1980). Probabilistic models for some intelligence and attainment tests.(Copenhagen, Danish Institute for Educational Research), expanded edition (1980) with foreword and afterword by B.D. Wright. Chicago: The University of Chicago Press.

10.1.2 Diagnostic and Exploratory Rasch Figures

Abbreviation	Description
ICC	Item Characteristic Curve
IIC	Item Information Function
IRF	Item Response Function
TCC	Test Characteristic Curve

10.1.3 Estimation methods and Estimates

Abbreviation	Description
AML(E)	Anchored Maximum Likelihood (Estimation)
CML(E)	Conditional Maximum Likelihood (Estimation)
EAP	Expected A Posterior (Estimate)
JML(E)	Joint Maximum Likelihood (Estimation)
UCON(E)	Unconditional Maximum Likelihood (Estimation)
MML(E)	Marginal Maximum Likelihood (Estimation)
WLE	Weighted Likelihood Estimate

Note*: JMLE “Joint Maximum Likelihood Estimation” is also called UCON, “Unconditional maximum likelihood estimation”. It was devised by Wright & Panchapakesan.

10.1.4 Popular R-Packages for running Rasch Model

1, “eRm”(Extended Rasch Modeling) R Package

• #1:Manual

• #2:Source Code

• #3:Commonly used functions

• #4: citation

Mair, P., & Hatzinger, R. (2007). Extended Rasch modeling: The eRm package for the application of IRT models in R. Journal of Statistical Software, 20(9), 1-20. http://www.jstatsoft.org/v20/i09

2, “TAM”(Test Analysis Modules) R package

• #1:Manual

• #2:Source Code

• #3:Commonly used functions

• #4: citation

Robitzsch, A., Kiefer, T., & Wu, M. (2020). TAM: Test Analysis Modules. R package version 3.5-19. https://CRAN.R-project.org/package=TAM

3, WrightMap packages (Best for plotting WrightMaps)

• #1: HomePage

  Check the Tutorials on the site to learn all the neat tricks！

• #2: Manual

• #3: Commonly used functions

Torres Irribarra, D. & Freund, R. (2014). Wright Map: IRT item-person map with ConQuest integration. Available at http://github.com/david-ti/wrightmap

10.2 Rasch friendly Jounrals

These Journals have published papers relating to Rasch analysis and Rasch measurement. They are believed to be willing to publish more.

10.3 Rasch Model Application Tempaltes

10.4 Reference for this book