WINSTEPS

Author: J. M. Linacre
Contact: http://www.winsteps.com/
Description: Winsteps is Windows-based software which assists with many applications of the Rasch model, particularly in the areas of educational testing, attitude surveys and rating scale analysis. Rasch analysis is a method for obtaining objective, fundamental, linear measures (qualified by standard errors and quality-control fit statistics) from stochastic observations of ordered category responses. Georg Rasch, a Danish mathematician, formulated this approach in 1953 to analyze responses to a series of reading tests (Rasch G, Probabilistic Models for Some Intelligence and Attainment Tests, Chicago: MESA Press, 1992, with instructive Foreword and Afterword by B.D. Wright). The Rasch models implemented in Winsteps include the Georg Rasch dichotomous, Andrich rating scale, Masters partial credit, Bradley-Terry paired comparison, Glas success model, Linacre failure model and most combinations of these models. Other models such as binomial trials and Poisson can also be analyzed by anchoring (fixing) the response structure to accord with the response model
Analyses: Cognitive Diagnostic Models; Latent Class Models; Multidimensional Models; Simulation/Resampling
System Requirements: Windows;Mac
Measurement Model: Rasch
License Type: Commercial
Documentation: student version; online manual; manual in PDF