convert_model: Convert model parameters from one model to another

Description Usage Arguments Value Author(s)

Description

This is especially handy for converting IRT models with less parameters (such as 1 parameter logistic model) to higher dimensional models such as three parameter logistic model.

Usage

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convert_model(ip, target_model = "3PL")

## S4 method for signature 'Item'
convert_model(ip, target_model = "3PL")

## S4 method for signature 'Itempool'
convert_model(ip, target_model = "3PL")

## S4 method for signature 'Testlet'
convert_model(ip, target_model = "3PL")

Arguments

ip

An Item-class or Itempool-class object

target_model

The target model that the conversion will be made.

Value

An 'Item' object with new model parameters will be returned.

Author(s)

Emre Gonulates

Emre Gonulates

Emre Gonulates

Emre Gonulates


irt documentation built on Nov. 9, 2021, 9:07 a.m.