Winsteps now does CMLE and JMLE !!

Winsteps:2-D x-y, 3-D x-y Scatterplots, Wright Maps, Scree Plots, One-click through R Statistics modules
button for 2D scatterplots button for WrightMap graphs button for Scree plots

WINSTEPS & Facets
Software for Rasch Measurement and Rasch Analysis

Buy Winsteps or Facets now.

Widely used, versatile, well documented, with great customer support.
Your questions answered promptly. Bugs fixed speedily.

Mike Linacre
Software by
Mike Linacre

  • WINSTEPS® Rasch Analysis and Rasch Measurement software for persons & items. Multiple-Choice (MCQ), Rating Scales (RSM), Partial Credit (PCM), with upto 255 categories per scale. Windows-native. Capacity: 60,000 items by 10,000,000 persons. Backward compatible with BIGSTEPS.
    Download free MINISTEP evaluation/student/demo version. Buy from our software sales agents, MyCommerce-ShareIt.
     
  • Facets Many-facet Rasch measurement (MFRM) for persons, items, judges, tasks, etc.; Linear Logistic Test Model (LLTM); Bradley-Terry-Luce Paired-Comparison Model (BTL). Capacity: at least 250,000,000 observations, 60 facets containing 4,000,000 elements (persons, items, raters, etc.)
    Download free Minifac evaluation/student/demo version. Buy from our software sales agents, MyCommerce-ShareIt
     
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Winsteps Features

Facets Features

Probabilistic Measurement Models
Dichotomous Rasch Model (DRM) - 60,000 items by 10,000,000 persons
Rating Scale Model (RSM) & Extended Logistic Model - Andrich - up to 255 rating-scale categories
Partial Credit Model (PCM) - Masters - up to 255 categories per item
Grouped Rating Scale Model (GRSM)
Many-Facet Rasch Measurement - Linacre
IRT Item Response Theory One Parameter Logistic Model 1PL 1-PL - Lord & Birnbaum
Linear Logistic Test Model (LLTM), Paired-Comparison (BTL) Model
 
Psychometric and Educational test development
Polytomous - Polychotomous - Analysis - Andersen; Sequential Rasch Models - Glas etc.
Rasch Measurement & Fit Analysis - Wright;
Item bias, DIF and DPF Analysis, Summary Statistics, Wright Maps and more ...

 
Practical Demonstrations of Rasch Measurement in Action

Education / Training

Rasch Ministep, Minifac and other Freeware

  • Free Windows-native Ministep student/evaluation/demo version of Winsteps

  • Free Windows-native version of Minifac, the student/evaluation/demo version of Facets

  • Courtesy of rasch.org and Mark Moulton: Excel spreadsheets demonstrating Estimating Rasch measures from ordinal data

  • R Statistics Rasch modules: search METACRAN for "Rasch"


Kaizen
"continual incremental improvement"

Other Rasch-related Resources

Demonstration of Rasch methodology
Rasch measurement converts dichotomous and rating scale observations into linear measures. It links qualitative analysis to quantitative methods.

Rasch scaling is often classified under item response theory, IRT, or logit-linear models. Rasch specifies how persons, probes, prompts, raters, test items, tasks, etc. must interact statistically through probabilistic measurement models for linear measures to be constructed from ordinal observations. Rasch analysis requires the investigation and quantification of accuracy, precision, reliability, construct validity, quality-control fit statistics, statistical information, linearity, local dependency and unidimensionality. Rasch implements stochastic Guttman ordering, conjoint additivity, Campbell concatenation, sufficiency and infinite divisibility.


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Facets Rasch measurement software. Buy for $149. & site licenses. Freeware student/evaluation download
Winsteps Rasch measurement software. Buy for $149. & site licenses. Freeware student/evaluation download

Rasch Publications
Applying the Rasch Model (Winsteps, Facets) 4th Ed., Bond, Yan, Heene Advances in Rasch Analyses in the Human Sciences (Winsteps, Facets) 1st Ed., Boone, Staver Introduction to Many-Facet Rasch Measurement (Facets), Thomas Eckes Rasch Models for Solving Measurement Problems (Facets), George Engelhard, Jr. & Jue Wang Statistical Analyses for Language Testers (Facets), Rita Green
Journal of Applied Measurement Rasch Analysis in the Human Sciences (Winsteps), Boone, Stave, Yale Rasch Measurement Models: Interpreting WINSTEPS and FACETS Output, R. Smith & S. Wind Fairness, Justice and Language Assessment (Winsteps, Facets), McNamara, Knoch, Fan Rasch Measurement: Applications, Khine
Probabilistic Models for Some Intelligence and Attainment Tests, Georg Rasch Rasch Models for Measurement, David Andrich Constructing Measures, Mark Wilson Aplicação do Modelo de Rasch (Português), de Bond, Trevor G., Fox, Christine M Invariant Measurement with Raters and Rating Scales: Rasch Models for Rater-Mediated Assessments (Facets), George Engelhard, Jr. & Stefanie Wind
Free Rasch Resources
Rasch Measurement Transactions - free Rasch Measurement research papers - free Winsteps Tutorials - free Facets Tutorials - free Many-Facet Rasch Measurement (Facets) - free, J.M. Linacre
Best Test Design - free, Wright & Stone Rating Scale Analysis - free, Wright & Masters Rasch Discussion Groups - free Diseño de Mejores Pruebas - free, Spanish Best Test Design  
Rasch Analysis from Other Perspectives
Rasch Models: Foundations, Recent Developments, and Applications, Fischer & Molenaar A Course in Rasch Measurement Theory, Andrich, Marais Rasch Models in Health, Christensen, Kreiner, Mesba Multivariate and Mixture Distribution Rasch Models, von Davier, Carstensen Applying the Rasch Model in Social Sciences Using R, Lamprianou
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facebook Forum: Rasch Measurement Forum to discuss any Rasch-related topic

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Questions, Suggestions? Want to update Winsteps or Facets? Please email Mike Linacre, author of Winsteps mike@winsteps.com


State-of-the-art : single-user and site licenses : free student/evaluation versions : download immediately : instructional PDFs : user forum : assistance by email : bugs fixed fast : free update eligibility : backwards compatible : money back if not satisfied
 
Rasch, Winsteps, Facets online Tutorials

Coming Winsteps & Facets Events
Dec. 4 - Dec. 6, 2021, Sat.-Mon. On-line conference: PROMS2021, Pacific Rim Objective Measurement Symposium (T. Bond, Yanzi, R Statistics and more), proms.promsociety.org/2021/
Jan. 21 - Feb. 18, 2022, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
May 20 - June 17, 2022, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
June 24 - July 22, 2022, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Further Topics (E. Smith, Winsteps), www.statistics.com
Aug. 12 - Sept. 9, 2022, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com
Oct. 7 - Nov. 4, 2022, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
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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Journal of Applied Measurement
JAM is changing Editor and is eager to receive article submissions: jamntnu@gmail.com