Showing 1 - 2 of 2 Research Library Publications

Conditional Subscore Reporting Using Iterated Discrete Convolutions

Posted: | R.A. Feinberg, M. von Davier

Journal of Educational and Behavioral Statistics: Vol 45, Issue 5, 2020

 

This article describes a method for identifying and reporting unexpectedly high or low subscores by comparing each examinee’s observed subscore with a discrete probability distribution of subscores conditional on the examinee’s overall ability.

Category:Assessment-Oriented Research, Scoring

One Size Doesn’t Fit All: Using Factor Analysis to Gather Validity Evidence When Using Surveys in Your Research

Posted: | E. Knetka, C. Runyon, S. Eddy

CBE—Life Sciences Education Vol. 18, No. 1

 

This article briefly reviews the aspects of validity that researchers should consider when using surveys. It then focuses on factor analysis, a statistical method that can be used to collect an important type of validity evidence.

Category:Assessment-Oriented Research, Reliability/Validity