Abstract
Objective To know the short-term effect of PBL in the course of preventive medicine.Methods PBL was used to the experimental classes which selected by RCT in one of bilingual class from clinical medicine students of grade 2008,LBL was used in controls.At the end of the course,a selfdesigned questionnaire and a traditional examination were used to investigate the short-term effects.Results 93.3% students of the experimental group thought PBL should be carried out though with some difficulties.93.3% ~ 100.0% students thought PBL had a great advantage in promoting the interest of learning and abilities of scientific research,self-learning,self-expression,knowledge application and competitive consciousness.PBL also had a great role in promoting the abilities such as collecting(96.7% )and sorting data (93.3%),understanding and mastering of knowledge (93.3% ),organization (93.3%)and team-work(83.3% ) etc.But there were 76.7% students complained PBL took more time than LBL,and 60.0% students thought that PBL was inferior to LBL in systematically learning knowledge,90.0% students thought that the preventive medicine should be adopted in the teaching model of combining with PBL and LBL The average scores on the final exam of PBL group were 26.93±2.29 and the control group were 26.78±2.76 ( t =-0.23 1,P =0.820 ).Conclusios The teaching model of PBL could improve many comprehensive qualities of students but had no short-term effect on scores of traditional examination,and the preventive medicine should be adopted in the teaching model of combining with PBL and LBL. Key words: Preventive medicine; problem-based learning; Lecture-based learning; Teaching model; Teaching effect
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