Showing 1 - 2 of 2 Research Library Publications

A Comparison of Strategies for Smoothing Parameter Selection for Mixed-Format Tests Under the Random Groups Design

Posted: | C. Liu, M. J. Kolen

Journal of Educational Measurement: Volume 55, Issue 4, Pages 564-581

 

Smoothing techniques are designed to improve the accuracy of equating functions. The main purpose of this study is to compare seven model selection strategies for choosing the smoothing parameter (C) for polynomial loglinear presmoothing and one procedure for model selection in cubic spline postsmoothing for mixed‐format pseudo tests under the random groups design.

Category:Assessment-Oriented Research, Reliability/Validity, Scoring

Commentary: On the Importance of the Speed-Ability Trade-Off When Dealing with Not Reached Items

Posted: | S. Pohl, M. von Davier

Front. Psychol. 9:1988

 

In their 2018 article, (T&B) discuss how to deal with not reached items due to low working speed in ability tests (Tijmstra and Bolsinova, 2018). An important contribution of the paper is focusing on the question of how to define the targeted ability measure. This note aims to add further aspects to this discussion and to propose alternative approaches.

Category:Assessment-Oriented Research, Reliability/Validity, General Measurement