read.qu.icl

file

<p>From ICL output, read in estimates of item parameters. <code>file</code> must be a
file produced with the <code>write_latent_dist file</code> command in ICL.
Quadrature objects are used when estimating abilities with <code>eap</code> and
for some of the scaling methods in <code>sca</code>.</p>

models

A collection of functions useful in learning and practicing IRT,
which can be combined into larger programs. Provides basic CTT analysis,
a simple common interface to the estimation of item
parameters in IRT models for binary responses with three different programs
(ICL, BILOG-MG, and ltm), ability estimation (MLE, BME, EAP, WLE, plausible
values), item and person fit statistics, scaling methods (MM, MS, Stocking-Lord,
and the complete Hebaera method), and a rich array of parametric and
non-parametric (kernel) plots. Estimates and plots Haberman's interaction model
when all items are dichotomously scored.

Ivailo Partchev

irtoys

A Collection of Functions Related to Item Response Theory (IRT)

Gunter Maris

Tamaki Hattori

read.qu.icl function

Read in quadrature — read.qu.icl

Read in quadrature

read.qu.icl: Read in quadrature

Description

Usage

Arguments

Value

See Also