Problem-based learning (PBL) is now incorporated into the curricula of most medical schools around the world. In comparison to the traditional curriculum, less is known about the influence of the adoption and implementation of a problem-based curriculum on the perceived structures, processes, and outcomes of learning experiences reported by students. The purpose of this study was twofold: (1) to compare the quality of learning experience of students enrolled in traditional discipline-based and problem-based medical curricula and (2) to explore the mediation effect of the process quality between the relationship of the structural quality and students' perception of learning experience outcomes. Through the distribution of an electronic survey, all 3rd and 4th year medical students enrolled in the discipline-based curriculum and the problem-based curriculum were invited to participate in the study. The students from both curricula completed the Student Experience Survey (SES), which was developed by the National Center for Academic Accreditation and Evaluation. Descriptive statistics, independent sample t-test and Hayes Macro regression analysis were used. Students enrolled in the problem-based curriculum had higher perceived support and sufficient advice with higher perceived quality of learning experiences compared with students enrolled in the traditional curriculum, however they reported less enjoyment of their university life. The structural factors (t = 19.83, p ≤ 0.001) and process factors (t = 9.21, p ≤ 0.001) were associated with an increase in students' reported outcomes by 0.67 and 0.49, respectively. These findings explain the mechanism by which the structural factors, such as maintaining adequate facilities and support, may help in enhancing the process quality (e.g., learner-centered learning), which in turn can enhance learning experience outcomes.
Keywords: learner-centered learning; learning experience; problem-based curriculum; processes and outcomes; quality of curricular structures.