Should the PBL tutor be present? A cross-sectional study of group effectiveness in synchronous and asynchronous settings

The use of a technology-assisted and teacher-supervised online discussion platform to promote academic progress in blended embryology courses

BACKGROUND

Students' engagement with learning materials and discussions with teachers and peers before and after lectures are among the keys to the successful implementation of blended programs. Mixed results have been reported by previous studies on blended learning. This study evaluated the effectiveness of embedding a teacher-supervised online discussion platform in a blended embryology course in terms of its impact on students' capabilities to handle difficult and cognitively challenging tasks.

METHODS

Two forms of blended learning were investigated and compared in this study. Students in the control group (n = 85) learned online materials before each class, followed by classroom instruction and activities in which face-to-face discussion and communication between students were encouraged. Students in the experimental group (n = 83) followed a similar procedure with an additional teacher-supervised online discussion platform to guide, supervise and evaluate their learning progress. All participants were first-year medical students in clinical medicine at Dalian Medical University who had enrolled in 2017. All participants took the final exam to test their learning outcomes.

RESULTS

The embryology grades of students in the experimental group were significantly higher than those of students in the control group (p = 0.001). Additionally, the scores of students in the experimental group on questions with a high difficulty level (p = 0.003) and questions assessing high-order cognitive skills (p = 0.003) were higher than those of students in the control group; the effect size was moderate (η² > 0.05).

CONCLUSIONS

In blended embryology courses, compared with learner-led and face-to-face discussion, the teacher-supervised online discussion platform has great potential to enable students to achieve higher grades and solve difficult and cognitively challenging tasks.

Evaluating Factors Influencing Knowledge-Sharing Behavior of Students in Online Problem-Based Learning

Adopting online problem-based learning (OPBL) to internship educational programs is an effective teaching method to stimulate self-directed and collaborative learning and knowledge-sharing behavior (KSB) of students. However, the OPBL collaboration experience is different from the traditional lecture-based learning experience for students. Integrating social identity theory and commitment-trust theory develops a formative research model that explains the KSB of students when using social media tools for the OPBL process. This process encourages social interaction and communication of students, in turn, facilitating the integration of collective intelligence or the creation, sharing, and exchange of knowledge. Data collected from 425 nursing students who studied at seven nursing colleges or medical universities in Taiwan were analyzed using the partial least squares (PLSs) technique. The results indicate that social identification is a crucial antecedent of KSB. Relationship quality plays a vital role in shaping the effects of interpersonal trust and relationship commitment (RC) on KSB during internship periods. The findings can contribute to theoretical discussions and enhance the effectiveness of KSB in the literature of internship and non-internship in the higher education field.