Showing 1 - 2 of 2 Research Library Publications

Using multisite instrumental variables to estimate treatment effects and treatment effect heterogeneity

Posted: | C.R. Runyon

UT Electronic Theses and Dissertations

 

Using Monte Carlo simulation, the current study examines the performance of three IV estimators and two conventional estimators in recovering the CATE and CATE heterogeneity under simulation conditions that resemble multisite trials of well-known educational programs.

Category:Assessment-Oriented Research, General Measurement

A Comparison of Experimental and Observational Approaches to Assessing the Effects of Time Constraints in a Medical Licensing Examination

Posted: | P. Harik, B. E. Clauser, I. Grabovsky, P. Baldwin, M. Margolis, D. Bucak, M. Jodoin, W. Walsh, S. Haist

Journal of Educational Measurement: Volume 55, Issue 2, Pages 308-327

 

The widespread move to computerized test delivery has led to the development of new approaches to evaluating how examinees use testing time and to new metrics designed to provide evidence about the extent to which time limits impact performance. Much of the existing research is based on these types of observational metrics; relatively few studies use randomized experiments to evaluate the impact time limits on scores. Of those studies that do report on randomized experiments, none directly compare the experimental results to evidence from observational metrics to evaluate the extent to which these metrics are able to sensitively identify conditions in which time constraints actually impact scores. The present study provides such evidence based on data from a medical licensing examination.

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