Item response theory model highlighting rating scale of a rubric and rater-rubric interaction in objective structured clinical examination.

ABSTRACT: Objective structured clinical examinations (OSCEs) are a widely used performance assessment for medical and dental students. A common limitation of OSCEs is that the evaluation results depend on the characteristics of raters and a scoring rubric. To overcome this limitation, item response theory (IRT) models such as the many-facet Rasch model have been proposed to estimate examinee abilities while taking into account the characteristics of raters and evaluation items in a rubric. However, conventional IRT models have two impractical assumptions: constant rater severity across all evaluation items in a rubric and an equal interval rating scale among evaluation items, which can decrease model fitting and ability measurement accuracy. To resolve this problem, we propose a new IRT model that i

SUBMITTER: Uto M 

PROVIDER: S-EPMC11379165 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature