Fisher_GRM

theta_est

<p>vector containing the item parameters. First component
is the <code>alpha</code> parameter and the next are the <code>beta</code> parameters</p>

item_par

nres

<p>Computes the item Fisher Information given an ability level based on the GRM
model</p>

Implements the Merged Tree-CAT method (Javier Rodriguez-Cuadrado et al., 2020, <doi:10.1016/j.eswa.2019.113066>) to generate Computerized Adaptive Tests (CATs) based on a decision tree. The tree growth is controlled by merging branches with similar trait distributions and estimations. This package has the necessary tools for creating CATs and estimate the subject's ability level.

Javier Rodriguez-Cuadrado

cat.dt

Computerized Adaptive Testing and Decision Trees

Juan C. Laria

David Delgado-Gomez

Fisher_GRM function

Fisher Information under GRM — Fisher_GRM

Fisher Information under GRM

Fisher_GRM: Fisher Information under GRM

Description

Usage

Arguments

Value