Showing 1 - 2 of 2 Research Library Publications

To the Editor: Limitations and Alternative Solutions to a USMLE COMLEX-USA Concordance 

Posted: | Daniel Jurich, Chunyan Liu, Amanda Clauser

Journal of Graduate Medical Education: Volume 14, Issue 3, Pages 353-354

 

Letter to the editor.

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

The Use of Multivariate Generalizability Theory to Evaluate the Quality of Subscores

Posted: | Z. Jiang, M.R. Raymond

Applied Psychological Measurement: Volume: 42 issue: 8, page(s): 595-612

 

Conventional methods for evaluating the utility of subscores rely on reliability and correlation coefficients. However, correlations can overlook a notable source of variability: variation in subtest means/difficulties. Brennan introduced a reliability index for score profiles based on multivariate generalizability theory, designated as G, which is sensitive to variation in subtest difficulty. However, there has been little, if any, research evaluating the properties of this index. A series of simulation experiments, as well as analyses of real data, were conducted to investigate G under various conditions of subtest reliability, subtest correlations, and variability in subtest means.

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