getRSSS {PROsetta} | R Documentation |
Compute a Crosswalk Table
Description
getRSSS
is a function for generating a raw-score to standard-score crosswalk table.
Usage
getRSSS(ipar, theta_grid, is_minscore_0, prior_mu_sigma)
Arguments
ipar |
an item parameter matrix for graded response items. Accepts both a/b and a/d format parameters. Accepts multidimensional item parameters. |
theta_grid |
the theta grid to use for numerical integration. |
is_minscore_0 |
if |
prior_mu_sigma |
a named list containing prior distribution parameters. All values must be in the theta metric.
|
Examples
## Free calibration without using anchor
o <- runCalibration(data_asq, technical = list(NCYCLES = 1000))
ipar <- mirt::coef(o, IRTpars = TRUE, simplify = TRUE)$items
items <- getItemNames(data_asq, 2)
getRSSS(
ipar = ipar[items, ],
theta_grid = seq(-4, 4, .1),
is_minscore_0 = TRUE,
prior_mu_sigma = list(mu = 0, sigma = 1)
)
[Package PROsetta version 0.4.1 Index]