摘要：Background: Purpose: Methods: Results: Conclusion: Key Words: PBL, lecture based method, education, frequent quizzesThe variables such as changing the way of learning, using different methods in teaching, showingscientific films in class or, as a whole, active learning have significant effects on the results of final examination.The results showed that by changing the way of learning (PBL and film showing) in 2001, there was astatistical difference between scores of the students of 2000 and 2001. Also there was a statistical difference with thestudents’ scores in 2002- the group with frequent quizzes.All students of 3 years (from 2000 till 2002) that had theoretical endodontic course (part 1) participated inthis descriptive-analytic study. The scores of final examinations of this course were obtained from their files. Datawere analyzed by SPSS software & ANOVA.To examine the effect of combination of PBL method and film showing on the short-term performance ofdentistry students and to compare it with lecture-based method and frequent quizzes.Journal of Medical Education Winter 2004;4(2): 77-80Advocates have proposed that frequent testing increases the effectiveness of instruction by encouraginglearners to study and review more often. It has also been argued that in this way, student errors can be identified andcorrected earlier and good performance can be recognized, leading to more positive attitudes toward learningprocess. In problem-based learning (PBL), medical students reportedly take a more active role in learning and havebetter recall than students in a conventional learning environment. The hypothetical benefits of a PBL and studentbasedenvironment and use of films in the class are the development of self-learning and problem-solving skills andenhancement of knowledge and motivation.
