WINSTEPS & Facets Rasch Software

Widely used versatile Rasch Analysis and Rasch Measurement Software

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 ...

  • WINSTEPS® Rasch measurement software for persons & items. Multiple-Choice (MCQ), Rating Scales (RSM), Partial Credit (PCM), with upto 255 categories per scale. Windows-native, backward compatible with BIGSTEPS. Data size: 60,000 items by 10,000,000 persons. Download free MINISTEP evaluation/student/demo version. Buy from our software sales agents, SWREG.
     
  • Facets Many-facet Rasch measurement (MFRM) for persons, items, judges, tasks, etc.; Linear Logistic Test Model (LLTM); Bradley-Terry-Luce Paired-Comparison Model (BTL). Download free Minifac evaluation/student/demo version. Buy from our software sales agents, SWREG

  • Kakushin
    "Innovation"

    • Winsteps and Facets User Manuals contain comprehensive instructions, examples and explanations for operating the software and interpreting its output

    • Get started with Winsteps and Facets Tutorial PDFs

    • For Rasch Conferences, Workshops and Training: see "Coming Events" below

    • 3rd Edn of Bond & Fox,"Applying the Rasch Model", will be published on June 16, 2015, with free software, Bond&FoxSteps3

    • Free software, Bond&FoxSteps, with Bond & Fox, 2nd Edn.,"Applying the Rasch Model".

    • Free Winsteps/Ministep Companion to Bond & Fox, 1st Edn.,"Applying the Rasch Model". Step-by-step through their examples using freeware Ministep.

    Rasch Freeware

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

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

    • Free BIGSTEPS, the DOS-based pre-WINSTEPS Rasch measurement program.

    • Free Facets 3.22, the last DOS-based pre-Windows version of the full Facets program.


    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.


    Go to Top of Page
    Go to Winsteps & Facets home Page

    Just released in June 2017: Winsteps 4.0 with Table 45 Cumulative Plot

    New: Masterchef Australia 2017: Rasch Measurement of Cooks with Table 45

    For more information, contact info@winsteps.com or use the Contact Form
     

    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

    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


     

    Forum Rasch Measurement Forum to discuss any Rasch-related topic

    Click here to add your email address to the Winsteps and Facets email list for notifications.

    Click here to ask a question or make a suggestion about Winsteps and Facets software.

    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
    Winsteps Tutorials Facets Tutorials Rasch Discussion Groups

     

    Coming Rasch-related Events
    Oct. 25-27, 2017, Wed.-Fri. In-person workshop: Applying the Rasch Model hands-on introductory workshop, Melbourne, Australia (T. Bond, B&FSteps), Announcement
    Dec. 6-8, 2017, Wed.-Fri. In-person workshop: Introductory Rasch Analysis using RUMM2030, Leeds, UK (M. Horton), Announcement
    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
    Jan. 22-24, 2018, Mon-Wed. In-person workshop: Rasch Measurement for Everybody (A. Tristan, Winsteps), San Luis Potosi, Mexico. www.ieia.com.mx
    April 10-12, 2018, Tues.-Thurs. Rasch Conference: IOMW, New York, NY, www.iomw.org
    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

     

    Our current URL is www.winsteps.com

    Winsteps® is a registered trademark
     

    The URL of this page is www.winsteps.com/index.htm