partgam

Calculates conditional and partial Gamma coefficients for x and y given z with confidence intervals.

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

partgam function

<dl><dt>x, y, z</dt>
<dd>Three numeric vectors or factors.</dd>
<dt>conf.level</dt>
<dd>Confidence level for the returned confidence interval.</dd></dl>

Arguments

Author

Conditional and Partial Gamma Coefficients — partgam

<dl>

<dt>x, y, z</dt>
<dd>Three numeric vectors or factors.</dd>


<dt>conf.level</dt>
<dd>Confidence level for the returned confidence interval.</dd>

</dl>

partgam: Conditional and Partial Gamma Coefficients

Description

Usage

Value

Arguments

Author

References

See Also