Free Rasch measurement software...


DOS version prior to WINSTEPS

Windows 7, 64-bit Windows: Please run in DOSBox
BIGSTEPS often does not run under recent versions of Windows

For complete information about Windows-native WINSTEPS.

Free version of BIGSTEPS 2.82 can be downloaded here. Users of earlier versions, please update to this.

Bigsteps is a DOS-based Rasch measurement program. It has most of the functionality of WINSTEPS, but lacks a Windows interface and recent enhancements. Its capacity is 3,000 items and 20,000 persons (cases). You may copy, distribute and use it without charge or time-limit. Of course, we hope you will want to purchase the full version of WINSTEPS (which can analyze 30,000 items and 10,000,000 persons, and has many other additional capabilities).

Free evaluation/student/demo version of WINSTEPS, called MINISTEP. Contains all Winsteps features except limited to 25 items and 75 persons (cases). Please copy, distribute and use.



BIGSTEPS, DOS precursor to WINSTEPS. Final Version: 2.82, December 1998. Data capacity: 20,000+ persons by 3,000 items.

You may download the self-extracting, self-installation file for BIGSTEPS, the free DOS precursor to Winsteps (size 200KB)

  1. Download bigdos.exe
  2. "Save as" into "c:\windows\desktop\bigdos.exe"
  3. Click on "bigdos.exe" on your desktop to install BIGSTEPS into your prefered directory, the precursor to Winsteps
  4. Delete "bigdos.exe".
  5. Run "Bigsteps" from your DOS prompt.

BIGSTEPS does not run under some versions of Windows.
BIGSTEPS has minimal support - if you need customer support, please purchase Winsteps


BIGSTEPS User's Manual (1998) in PDF format
You can download a PDF file containing Bigsteps.pdf, the entire text of the BIGSTEPS User's Manual. (612KB)
Download bigsteps.pdf, the BIGSTEPS User Manual in PDF format

WINSTEPS-MINISTEP User Manual On-Line This User Manual is also useful for BIGSTEPS

WINSTEPS operational flowchart

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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 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
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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),
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.
April 10-12, 2018, Tues.-Thurs. Rasch Conference: IOMW, New York, NY,
April 13-17, 2018, Fri.-Tues. AERA, New York, NY,
May 25 - June 22, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps),
June 29 - July 27, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Further Topics (E. Smith, Winsteps),
Aug. 10 - Sept. 7, 2018, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets),
Oct. 12 - Nov. 9, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps),


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