Equating/Linking Programs
The computer programs listed below can be used to conduct many of the equating analyses described in Kolen and Brennan (2004). Data sets from this book are included with some of the programs. Windows PC console and graphical user interface (GUI) versions and Macintosh OS9 console and OS10 GUI versions are available for at least some of the programs. The programs can be downloaded below.
CIPE
Conducts linear and equipercentile equating under the common-item nonequivalent groups design.
RAGE-RGEQUATE
onducts linear equating and equipercentile equating under the random groups design using cubic spline and log-linear methods.
Equating Error
Estimates bootstrap standard errors of linear equating and equipercentile equating under the random groups design.
PIE
Conducts IRT true and observed scoring equating for dichotomously scored tests.
POLYEQUATE
Conducts IRT true and observed scoring equating for dichotomously and polytomously scored tests.
LEGS
Conducts linear and equipercentile linking.
Reference
Kolen, M. J. & Brennan, R. L. (2004). Test Equating, Scaling, and Linking: Methods and Practices (2nd ed.). New York: Springer-Verlag.