Fisher_GRM {cat.dt}R Documentation

Fisher Information under GRM

Description

Computes the item Fisher Information given an ability level based on the GRM model

Usage

Fisher_GRM(theta_est, item_par, nres)

Arguments

theta_est

ability level

item_par

vector containing the item parameters. First component is the alpha parameter and the next are the beta parameters

nres

number of possible item responses

Value

An integer that represents the Fisher Information value of the specified item given the ability level

Author(s)

Javier Rodriguez-Cuadrado


[Package cat.dt version 0.3.1 Index]