A Comparison of Six Methods for Combining Multiple IRT Item Parameter Estimates

Six procedures for combining sets of IRT item parameter estimates obtained from different samples were evaluated using real and simulated response data. In the simulated data analyses, true item and person parameters were used to generate response data for three different-sized samples. Each sample...

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Veröffentlicht in:	Journal of educational measurement 1988-09, Vol.25 (3), p.233-246
1. Verfasser:	McKinley, Robert L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical estimating Applied statistics Calibration Covariance matrices Datasets Error rates Estimation bias Estimation methods Standard deviation Weighted averages
Online-Zugang:	Volltext
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