Two studies were conducted to attempt to evaluate the selection procedures used in Hadassah Medical School. The predictors assessed were the Israeli high school matriculation examinations, a general aptitude test, an interview and a semi-projective test designed to assess personality pathology. In the first study 145 students of the 1975 and 1976 cohorts were assessed, the criteria being a combination of peer evaluations, evaluation of supervisors and academic record. Results showed the matriculation average score to be the only effective predictor for all criteria. In the second study 155 students of the 1979, 1980 and 1981 cohorts were assessed, the criteria being evaluation of supervising doctors, BSc grades and grades during the clinical period. Results again indicated that the matriculation test is the most effective predictor. In this study, however, the other variables added to the prediction of criteria based on clinical evaluations. The results were discussed, raising several possible explanations for the relatively high validity of the matriculation scores. It was suggested the matriculation scores capture personality dimensions, such as motivation and adjustment to the learning environment, which are important factors for success in medical training.