Showing 1 - 2 of 2 Research Library Publications

Application of Sampling Variance of Item Response Theory Parameter Estimates in Detecting Outliers in Common Item Equating

Posted: | Chunyan Liu, Daniel Jurich

Applied Psychological Measurement: Volume 46, issue 6, page(s) 529-547

 

The current simulation study demonstrated that the sampling variance associated with the item response theory (IRT) item parameter estimates can help detect outliers in the common items under the 2-PL and 3-PL IRT models. The results showed the proposed sampling variance statistic (SV) outperformed the traditional displacement method with cutoff values of 0.3 and 0.5 along a variety of evaluation criteria.

Category:Assessment-Oriented Research, General Measurement

Guest Editorial

Posted: | I. Kirsch, W. Thorn, M. von Davier

Quality Assurance in Education, Vol. 26 No. 2, pp. 150-152

 

An introduction to a special issue of Quality Assurance in Education featuring papers based on presentations at a two-day international seminar on managing the quality of data collection in large-scale assessments.

Category:Assessment-Oriented Research, General Measurement, Applications of Technology