Showing 1 - 2 of 2 Research Library Publications

Outlier Detection Using t-test in Rasch IRT Equating under NEAT Design

Posted: | Chunyan Liu, Dan Jurich

Applied Psychological Measurement: Volume 47, issue 1, page(s) 34-47

 

This study used simulation to investigate the performance of the t-test method in detecting outliers and compared its performance with other outlier detection methods, including the logit difference method with 0.5 and 0.3 as the cutoff values and the robust z statistic with 2.7 as the cutoff value.

Category:Assessment-Oriented Research, Scoring

Providing Utility, Not Scores: Visualizations to Support Subscore Inferences

Posted: | R. A Feinberg, D. P. Jurich

Educational Measurement: Issues and Practice, 37: 5-8

 

This article spotlights the winners of the 2018 EM:IP Cover Graphic/Data Visualization Competition.

Category:Assessment-Oriented Research, Scoring