createGroup

This function automatically create a mapping matrix based on the existing DIF inducing covariates.

Performs Rasch analysis (semi-)automatically, which has been shown to be comparable with the standard Rasch analysis (Feri Wijayanto et al. (2021) <doi:10.1111/bmsp.12218>, Feri Wijayanto et al. (2022) <doi:10.3758/s13428-022-01947-9>, Feri Wijayanto et al. (2022) <doi:10.1177/01466216221125178>).

Feri Wijayanto

autoRasch

Semi-Automated Rasch Analysis

Ioan Gabriel Bucur

Perry Groot

Tom Heskes

Karlien Mul

Baziel G.M. van Engelen

createGroup function

<dl><dt>backInfo</dt>
<dd>A matrix of person background information (e.g., gender, country, age, etc);</dd>
<dt>idxUsed</dt>
<dd>The column number of <code>backInfo</code> that is used for creating the mapping matrix.</dd>
<dt>contMethod</dt>
<dd>The method of how to handle a continuous variable (e.g., mean, median). This parameter is passing a function used to split the variable into binary. The default is <code>mean</code>.</dd></dl>

Arguments

Create Mapping Matrix of DIF Groups — createGroup

<dl>

<dt>backInfo</dt>
<dd>A matrix of person background information (e.g., gender, country, age, etc);</dd>


<dt>idxUsed</dt>
<dd>The column number of <code>backInfo</code> that is used for creating the mapping matrix.</dd>


<dt>contMethod</dt>
<dd>The method of how to handle a continuous variable (e.g., mean, median). This parameter is passing a function used to split the variable into binary. The default is <code>mean</code>.</dd>

</dl>

createGroup: Create Mapping Matrix of DIF Groups

Description

Usage

Value

Arguments