read.mirt

an object returned from <code>mirt, bfactor,
  polymirt</code>, or <code>confmirt</code>

if <code>TRUE</code>, the step/threshold
  parameters will be reformated to be deviations from a
  location parameter

loc.out

if <code>TRUE</code>, the parameters will be
  output as an <code>irt.pars</code> object

as.irt.pars

A plotting function for displaying the individuals
  trajectories and their modelled functional form. Useful
  for detecting aberrant individual trajectories.

PLINK

Analysis of dichotomous and polychotomous response data
        using latent trait models under the Item Response Theory
        paradigm. Includes the multivariate two- and three-parameter
        logistic models, confirmatory bifactor analysis, polytomous
        exploratory and confirmatory item response models which may
        include polynomial or product constructed factors, and
        partially-compensatory item response modeling in conjunction
        with other IRT models.

read.mirt: Translate mirt parameters for plink package

Description

Usage

Arguments

Examples