irt_gen

Creates a data frame of item parameters.

Provides functions to simulate data from large-scale educational
assessments, including background questionnaire data and cognitive item
responses that adhere to a multiple-matrix sampled design. The theoretical
foundation can be found on
Matta, T.H., Rutkowski, L., Rutkowski, D. et al. (2018)
<doi:10.1186/s40536-018-0068-8>.

Waldir Leoncio

lsasim

Functions to Facilitate the Simulation of Large Scale Assessment
Data

Tyler Matta

Leslie Rutkowski

David Rutkowski

Yuan-Ling Linda Liaw

Kondwani Kajera Mughogho

Sinan Yavuz

Paul Bailey

irt_gen function

<dl><dt>theta</dt>
<dd>numeric ability estimate.</dd>
<dt>a_par</dt>
<dd>numeric discrimination parameter.</dd>
<dt>b_par</dt>
<dd>numeric or vector of numerics difficulty parameter(s).</dd>
<dt>c_par</dt>
<dd>numeric guessing parameter.</dd>
<dt>D</dt>
<dd>numeric parameter to specify logistic (1) or normal (1.7).</dd></dl>

Arguments

Simulate item responses from an item response model — irt_gen

<dl>

<dt>theta</dt>
<dd>numeric ability estimate.</dd>


<dt>a_par</dt>
<dd>numeric discrimination parameter.</dd>


<dt>b_par</dt>
<dd>numeric or vector of numerics difficulty parameter(s).</dd>


<dt>c_par</dt>
<dd>numeric guessing parameter.</dd>


<dt>D</dt>
<dd>numeric parameter to specify logistic (1) or normal (1.7).</dd>

</dl>

irt_gen: Simulate item responses from an item response model

Description

Usage

Arguments

Examples