Students' perceptions of using Problem-Based Learning (PBL) in teaching cognitive communicative disorders

Application of PBL combined with traditional teaching in the Immunochemistry course

BACKGROUND

The problem-based learning (PBL) model has been widely carried out in many fields of medical colleges and universities. Immunochemistry as a cross-disciplinary science plays a vital role in preventing the occurrence of diseases and bridging the development of Life Science and Medicine. But now the Immunochemistry course still lacks the teaching practice in PBL. To explore the significance of PBL applied in the Immunochemistry course, the effect of the PBL model on the learning of undergraduates majoring in Chemicobiology was systematically evaluated.

METHODS

The teaching objects were the undergraduates majoring in Chemicobiology from Guizhou Medical University. The PBL model was applied in the Immunochemistry course. 62 undergraduates in Grade 2018 were set as the control group and adopted the traditional expository model. 93 undergraduates in Grades 2019-2020 were separately set as the experimental groups, which adopted the PBL model based on traditional lecture-based learning. In the PBL model, six cases related to course contents were designed for the students to complete. The final exams of the undergraduates in Grades 2018-2020 were analyzed by the score ranges (< 60 points, 60-69 points, 70-79 points, and ≥ 80 points) and nonparametric test. Finally, the questionnaire survey about the teaching evaluation was performed in Grades 2019-2020.

RESULTS

In Grades 2019 and 2020, the excellent rates (≥ 80 points), pass rates (≥ 60 points), fail rates (< 60 points), and average scores of the undergraduates were separately about 29%, 91.11% and 93.75%, 6.25%, and 8.89%, and 72.55 and 74.45 points. But in Grade 2018, the excellent rate, pass rate, failure rate, and average score of the undergraduates were separately 9.68%, 59.68%, 40.32%, and 62.55 points. By the statistical analysis, it was found that the excellent rates (χ2 = 8.317, P < 0.005) and pass rates (χ2 = 24.52, P < 0.0001) in Grades 2018-2020 were different, of which Grade 2020were the highest (29.17%, 93.75%) and Grade 2018 was the lowest (9.68%, 59.68%). The average score, excellent rate, and pass rate in Grade 2018 had significant differences with Grade 2019 (P < 0.0001, P < 0.0167) and Grade 2020 (P < 0.001, P < 0.0167). The questionnaire survey also showed that the student's learning interests, independent problem-solving ability, knowledge structure system, and scientific thought and teamwork awareness were enhanced. In Grades 2019 and 2020, the ICC (95% CI) of criterion validity and inter-rater reliability were separately 0.42/0.34 and 0.81/0.80 (P < 0.0001).

CONCLUSION

The combination of PBL and traditional expository models played positive roles in the student's learning in the Immunochemistry course.

An exploration of speech and language pathology student and facilitator perspectives on problem-based learning online

This mixed-methods study explored the perspectives of second and third-year Speech Language Pathology (SLP) students and facilitators on Problem-Based Learning (PBL) online. As a result of the COVID-19 pandemic, PBL was delivered online for the academic year 2020-2021 via a virtual learning environment. Forty-seven students and five facilitators completed an online survey designed to evaluate the quality of individual and collaborative learning in the PBL online context. All participants had experience of pre-COVID-19 face-to-face PBL. Thematic analysis and descriptive statistics were used to analyse qualitative and quantitative data, respectively. Demonstrated a preference from both students and facilitators to maintain PBL in a face-to-face format. Aspects of functionality offered by the virtual platform assisted in the PBL process, however technical and environmental barriers impeded virtual delivery. Responses suggest that the development of rapport and interactivity levels online are not equivalent to face-to-face PBL, and these factors were perceived by participants to negatively influence the learning process. Perspectives on the role of the facilitator online convey divergent views between second and third years which reflected a change in facilitator style to support more independent learning in line with students' progression through the course. Our findings demonstrate that students and facilitators are open to future implementation of a blended model of PBL. Participants reported benefits such as reduction in indirect education costs and acquisition of a digital skillset. However, our study indicates a preference for enhanced social presence afforded by face-to-face PBL.

Update on research and application of problem-based learning in medical science education

Problem-based learning (PBL) is a unique form of pedagogy dedicated to developing students' self-learning and clinical practice skills. After several decades of development, although applications vary, PBL has been recognized all over the world and implemented by many medical schools. This review summarizes and updates the application and study of PBL in medical education through the literature published between 1993 and early 2017. It focuses on understanding real medical PBL courses and ways to improve PBL to achieve better learning outcomes. PBL aims to develop lifelong skills to solve practical problems rather than limiting learning to theoretical knowledge. To achieve this goal, strict and reasonable procedures need to be designed and implemented. Rigorous monitoring and timely feedback and evaluation are indispensable to constant improvements and perfecting of the process. © 2017 by The International Union of Biochemistry and Molecular Biology, 46(2):186-194, 2018.