Showing 1 - 3 of 3 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

Evaluation of a New Method for Providing Full Review Opportunities in Computerized Adaptive Testing — Computerized Adaptive Testing with Salt

Posted: | Z. Cui, C. Liu, Y. He, H. Chen

Journal of Educational Measurement: Volume 55, Issue 4, Pages 582-594

 

This article proposes and evaluates a new method that implements computerized adaptive testing (CAT) without any restriction on item review. In particular, it evaluates the new method in terms of the accuracy on ability estimates and the robustness against test‐manipulation strategies. This study shows that the newly proposed method is promising in a win‐win situation: examinees have full freedom to review and change answers, and the impacts of test‐manipulation strategies are undermined.

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

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