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irt (version 0.1.1)

item_fit: Calculate item-fit indices

Description

item_fit calculates the fit of an item to a given psychometric model.

Usage

item_fit(ip, resp, theta, type = "Q3")

Arguments

ip

An Itempool-class object.

resp

A vector of item responses.

theta

An vector containing ability parameters.

type

The type of the item-fit index.

Value

A vector of item-fit index values.