count_mu

Returns the age-interpolated median of the D-score of the default
reference for a given key.

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

count_mu function

<dl><dt>t</dt>
<dd>Decimal age, numeric vector</dd>
<dt>key</dt>
<dd>Character, key of the reference population</dd></dl>

Arguments

Median D-score from the default references for the given key — count_mu

<dl>

<dt>t</dt>
<dd>Decimal age, numeric vector</dd>


<dt>key</dt>
<dd>Character, key of the reference population</dd>

</dl>

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count_mu: Median D-score from the default references for the given key

Description

Usage

Value

Arguments

Details