infoWI {conquestr}R Documentation

infoWI

Description

Calculates an index representing the product of a test information function and an ability distribution.

Usage

infoWI(myItems, myAbilities, type = "empirical")

Arguments

myItems

A vector of item deltas.

myAbilities

A vector of person abilities.

type

A character String. Should the test information be calculated empirically ("empirical" - default) or analytically using moments of distribution ("approx").

Value

A double.

Examples

infoWIOut<- infoWI(runif(10, -2, 3), rnorm(1000, 0, 1))

[Package conquestr version 0.9.96 Index]