Fisher_NRM {cat.dt}R Documentation

Fisher Information under NRM

Description

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

Usage

Fisher_NRM(theta_est, item_par, nres)

Arguments

theta_est

ability level

item_par

vector containing the item parameters. Odd components are the alpha parameters and even 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]