Contains functions to perform various models and methods for test equating. It currently implements the traditional mean, linear and equipercentile equating methods. Both IRT observedscore and truescore equating are also supported, as well as the meanmean, meansigma, Haebara and StockingLord IRT linking methods. It also supports newest methods such that local equating, kernel equating (using Gaussian, logistic, Epanechnikov, uniform and adaptive kernels) with presmoothing, and IRT parameter linking methods based on asymmetric item characteristic functions. Functions to obtain both standard error of equating (SEE) and standard error of equating differences between two equating functions (SEED) are also implemented for the kernel method of equating.
Package details 


Author  Jorge Gonzalez [cre, aut], Daniel Leon Acuna [ctb] 
Maintainer  Jorge Gonzalez <jorge.gonzalez@mat.uc.cl> 
License  GPL (>= 2) 
Version  1.3.3 
URL  http://www.mat.uc.cl/~jorge.gonzalez 
Package repository  View on CRAN 
Installation 
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