\name{coef.BoundIRT}
\alias{coef.BoundIRT}

\title{
  Obtain item parameter estimates}
\description{
  Extracts a matrix of posterior means for the item parameters of a \code{BoundIRT}-object}

\usage{
\method{coef}{BoundIRT}(object,sd=FALSE, ...)}

\arguments{

  \item{object}{A \code{BoundIRT}-object.}

    \item{sd}{A Boolean indicating if posterior standard deviations should be returned as well}
    \item{...}{Other arguments to be passed to \code{print()}}
    }

\value{
  A matrix containing the posterior mean (and standard deviations if sd=TRUE) of the item parameters from a bounded IRT model fit with the \code{fitBIRT()} function.}

\author{ Dylan Molenaar \email{d.molenaar@uva.nl}}

\seealso{
\code{\link{fitBIRT}} to estimate various bounded continuous IRT models to data.

\code{\link{plot.BoundIRT}} to plot the item and test information curves and predicted densities for the different models.

\code{\link{coef.BoundIRT}} to extract item parameter estimates from a \code{BoundIRT} object.

\code{\link{bridgeBIRT}} to use bridge sampling to calculate the marginal loglikelihood for a model in a \code{BoundIRT} object.

\code{\link{latregBIRT}} to conduct a latent regression of the person parameters on some observed predictor variables.

\code{\link{rBIRT}} simulate data according to a (zero and/or one inflated) bounded IRT model.

}
\examples{

  # read in the pre-estimated object containing the Abasement results
  data(out_beta)

  coef(out_beta)


}
\keyword{models}
\keyword{multivariate}
