Dear Editor: Multiple choice tests are the most common objective tests in medical education which are used to assess the individual knowledge, recall, recognition and problem solving abilities. One of the testing components is the post-test analysis. This component includes; first, qualitative analysis of the taxonomy of questions based on the Bloom’s educational objectives and percentage of the questions with no structural problems; and second, the quantitative analysis of the reliability (KR-20) and indices of difficulty and differentiation (1). This descriptive-analytical study was aimed to qualitatively and quantitatively investigate the multiple choice tests of the faculty members at Kermanshah University of Medical Sciences in 2009-2010. The sample size comprised of 156 tests. Data were analyzed by SPSS-16 software using t-test, chi squared test, ANOVA and Tukey multiple comparison tests.