builtin_itembank

<p>A data frame with administrative information per item with difficulty
estimates (<code>tau</code>) from the Rasch model. The item bank provides the basic
information to calculate D-scores. The items in the item bank
are a subset of all items as collected in builtin_itemtable.</p>

datasets

The D-score summarizes the child's performance on a set of
milestones into a single number. The package implements four Rasch model
keys to convert milestone scores into a D-score. It provides tools to
calculate the D-score and its precision from the child's milestone scores,
to convert the D-score into the Development-for-Age Z-score (DAZ)
using age-conditional references, and to map milestone names into a
generic 9-position item naming convention.

Stef van Buuren

dscore

D-Score for Child Development

Iris Eekhout

Arjan Huizing

builtin_itembank function

<p>A <code>data.frame</code> with variables:</p><table class="table">
<tr><td>Name</td><td>Label</td></tr>
<tr><td><code>key</code></td><td>String indicating a specific Rasch model</td></tr>
<tr><td><code>item</code></td><td>Item name, gsed lexicon</td></tr>
<tr><td><code>tau</code></td><td>Difficulty estimate</td></tr>
<tr><td><code>label</code></td><td>Label (English)</td></tr>
<tr><td><code>instrument</code></td><td>Instrument code</td></tr>
<tr><td><code>domain</code></td><td>Domain code</td></tr>
<tr><td><code>mode</code></td><td>Administration mode</td></tr>
<tr><td><code>number</code></td><td>Item number</td></tr>
</table><p></p><p></p>

Format

Collection of items fitting the Rasch model — builtin_itembank

<p>A <code>data.frame</code> with variables:</p><table class='table'>
<tr><td>Name</td><td>Label</td></tr>
<tr><td><code>key</code></td><td>String indicating a specific Rasch model</td></tr>
<tr><td><code>item</code></td><td>Item name, gsed lexicon</td></tr>
<tr><td><code>tau</code></td><td>Difficulty estimate</td></tr>
<tr><td><code>label</code></td><td>Label (English)</td></tr>
<tr><td><code>instrument</code></td><td>Instrument code</td></tr>
<tr><td><code>domain</code></td><td>Domain code</td></tr>
<tr><td><code>mode</code></td><td>Administration mode</td></tr>
<tr><td><code>number</code></td><td>Item number</td></tr>
</table>



builtin_itembank: Collection of items fitting the Rasch model

Description

Usage

Arguments

Format

Details

See Also

Examples

Name	Label
`key`	String indicating a specific Rasch model
`item`	Item name, gsed lexicon
`tau`	Difficulty estimate
`label`	Label (English)
`instrument`	Instrument code
`domain`	Domain code
`mode`	Administration mode
`number`	Item number