Abstract
Introduction: Medical educators are concerned about predicting standardized tests for students' academic performance in medical colleges. This study, in Saudi Arabia, attempted to analyze the predictive validity of two local standardized tests (GAT and SAAT) for students' performance in the first two years and basic and advanced science courses. This study is unique since it focuses on comparing the prediction of both tests between the two years and examining the difference in students' performance in basic and advanced science courses.Methods: Data of 650 students included GAT and SAAT scores, GPA in the first and second year, and average basic and advanced science courses validated through students' college ID.Results: Results show that both GAT and SAAT significantly predict medical students' GPA with sufficient strength (ie, R2 =27% and 28% for the first and second years). It also indicates that GAT and SAAT are significant predictors of students' academic performance in their basic and advanced science courses with an acceptable strength (ie, R2= 27% for the basic science course, and R2= 22% for advanced science course).Discussion: Based on these results, the study concludes about the necessity of having more accurate and relevant admission criteria for medical colleges.