WINSTEPS & Facets Rasch Software

• WINSTEPS^® Rasch measurement software for persons & items. MCQ, Rating Scales, Partial Credit, with upto 255 categories per scale. Windows-native, backward compatible with BIGSTEPS. Data size: 30,000 items by 10,000,000 persons. Download free MINISTEP evaluation/student version.

• Facets Many-facet Rasch measurement for persons, items, judges, tasks, etc. Download free Minifac evaluation/student version.

Winsteps Features

Facets Features

• Windows-native Winsteps 3.65.0, April 2008, for Rasch measurement and analysis, 10,000,000 people, 30,000 items, 255 categories per item. Picture on right is of control and data file set up screen.

• Windows-native Facets 3.63.0, January 2008, for many-facet Rasch measurement, with Facform 1.64 data-formatter.

• Order from SWREG

Rasch Consultants

Winsteps and Facets software training & workshops: see "Coming Events" below

Rasch Freeware

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

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

• Recursos de Winsteps / Ministep en Español

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

• Free Winsteps/Ministep Companion to "Constructing Measures" (Mark Wilson, 2004, Erlbaum) and ConstructMap (formerly GradeMap). Program interface and equivalent Winsteps output.

• User comments about Winsteps and Facets

• Winsteps & Facets users and site license holders

• List of citations to Facets in scholarly Papers

• Bugs and workarounds discovered for ABSOFT® FORTRAN while developing Winsteps

Other Rasch-related Resources

• Directory of all-known available Rasch software

• ISME-PROMS, Kuala Lumpur, 2005: Download keynote at ISME-PROMS Powerpoint: Download keynote at ISME-PROMS PDF Text

• Journal of Applied Measurement - most authoritative journal for Rasch research.

• Rasch Measurement Transactions - research notes and reviews. Publication of the Rasch Measurement SIG, AERA.

• The Institute for Objective Measurement now operates www.rasch.org for Rasch conferences, books, videotapes, reference material and journals.

• Final 2006 US PGA Golf Rankings and Measures: 300 players
  
• Final 2005 US PGA Golf Rankings and Measures: 300 players
  No. 1: Tiger Woods
  No. 300 Kelly Mitchum
  
• Final 1999-2000 College Basketball Top 25 Rankings
  No. 1: Michigan State
  No. 319: Grambling State
  
• All Div. I Rankings (319 Colleges)
  
• Final 1999-2000 College Football Rankings:
  No. 1: Florida State
  No. 234: St. Peters
  

Rasch scaling is often misclassified under item response theory, IRT, or logit-linear models. These describe data. Rasch specifies how persons, probes, prompts, raters, test items, tasks, etc. must interact statistically 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.