Analysis of use of a single best answer format in an undergraduate medical examination.

Unlabelled: Examinations at the Faculty of Medicine of Mu'tah University are based on a single best answer multiple-choice questions (MCQs) format. However, the reliability of this examination format has not been determined.

Objective: Using an examination of obstetrics and gynaecology as a model, this study aims to analyze the difficulty (facility) index, the discriminatory power and reliability of the examination format.