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The effectiveness of problem-based learning (PBL) versus lecture-based learning (LBL) continues to be debated all over the world. These arguments have often been based on students' cognitive measures of performance. Little emphasis has been placed on non-cognitive factors that may directly or indirectly affect the medical school performance of students in either curriculum. The purpose of this study was to (1) document possible differences in student cognitive and non-cognitive characteristics at entry between the two curricula and (2) to explore the relationships that exist between cognitive and non-cognitive factors. Data were obtained from three medical school classes (n = 281). The results indicate that students who entered the PBL curriculum at this medical school had higher total Medical College Admission Test and undergraduate grade point average than students who entered the LBL curriculum. Students who entered the PBL curriculum were also more self-sufficient and were more likely to do well in individualistic and less structured settings. There were no strong correlations between cognitive and non-cognitive variables. Before conclusions can be drawn about the effectiveness of either PBL or LBL curricula, we need to document patterns in entry characteristics to control for a priori differences that affect student performance.
Cariaga-Lo et al. (Wed,) studied this question.