R/NAEPirtparams-package.R

In NAEPirtparams: IRT Parameters for the National Assessment of Education Progress

#' NAEP IRT Parameter Tables
#' 
#' The \code{NAEPirtparams} package provides NAEP IRT parameters, item adjustment information,
#' and subtest transformation information for NAEP assessments. 
#' 
#' The package provides a table called \code{\link{parameters}}, which has item
#' parameters by year, subject, and grade. The \code{\link{adjustments}} table
#' provides the item adjustment information that NAEP implemented in scaling (i.e., 
#' item deletions and collapsed score categories). The table \code{\link{transformations}} 
#' has the location, scale, and weights for the subtests that make up a test.
#' 
#' @docType package
#' @name NAEPirtparams-package
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