item_target

The item target is the value of the person parameter where
item information is maximized.

Tools to assess model fit and identify misfitting items for Rasch models (RM) and partial credit models (PCM). Included are item fit statistics, item characteristic curves, item-restscore association, conditional likelihood ratio tests, assessment of measurement error, estimates of the reliability and test targeting as described in Christensen et al. (Eds.) (2013, ISBN:978-1-84821-222-0).

Marianne Mueller

iarm

Item Analysis in Rasch Models

Pedro Henrique Ribeiro Santiago

item_target function

<dl><dt>obj</dt>
<dd>An object of class "eRm" (but not "dRm"), a fitted partial
credit model using the function PCM in package eRm or of class "pcmodel"
(from package psychotools).</dd></dl>

Arguments

Author

Computation of Item Targets for Polytomous Models — item_target

<dl>

<dt>obj</dt>
<dd>An object of class "eRm" (but not "dRm"), a fitted partial
credit model using the function PCM in package eRm or of class "pcmodel"
(from package psychotools).</dd>

</dl>

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item_target: Computation of Item Targets for Polytomous Models

Description

Usage

Value

Arguments

Author

Examples