Showing 1 - 2 of 2 Research Library Publications

Differential Item Functioning Analysis of United States Medical Licensing Examination Step 1 Items

Posted: | Jonathan D. Rubright, Michael Jodoin, Stephanie Woodward, Michael A. Barone

Academic Medicine: Volume 97 - Issue 5 - Pages 718-722

 

The purpose of this 2019–2020 study was to statistically identify and qualitatively review USMLE Step 1 exam questions (items) using differential item functioning (DIF) methodology.

Category:Product-Oriented Research, USMLE, Assessment-Oriented Research, Links to Outcomes

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