Small group effectiveness in a Caribbean medical school's problem-based learning sessions

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

BACKGROUND

The tutorial group and its dynamics are a cornerstone of problem-based learning (PBL). The tutor's support varies according to the setting, and it is pertinent to explore group effectiveness in relation to different settings, for example online or campus-based. The PBL groups' effectiveness can partly be assessed in terms of cognitive and motivational aspects, using a self-report tool to measure PBL group effectiveness, the Tutorial Group Effectiveness Instrument (TGEI). This study's aim was to explore tutor participation in variations of online and campus-based tutorial groups in relation to group effectiveness. A secondary aim was to validate a tool for assessing tutorial group effectiveness in a Swedish context.

METHODS

A cross-sectional study was conducted with advanced-level nursing students studying to become specialised nurses or midwives at a Swedish university. The TGEI was used to measure motivational and cognitive aspects in addition to overall group effectiveness. The instrument's items were translated into Swedish and refined with an expert group and students. The responses were calculated descriptively and compared between groups using the Mann-Whitney U and Kruskal-Wallis tests. A psychometric evaluation was performed using the Mokken scale analysis. The subscale scores were compared between three different tutor settings: the tutor present face-to-face in the room, the tutor present online and the consultant tutor not present in the room and giving support asynchronously.

RESULTS

All the invited students (n = 221) participated in the study. There were no differences in motivational or cognitive aspects between students with or without prior PBL experience, nor between men and women. Higher scores were identified on cognitive aspects (22.6, 24.6 and 21.3; p < 0.001), motivational aspects (26.3, 27 and 24.5; p = 002) and group effectiveness (4.1, 4.3, 3.8, p = 0.02) for the two synchronously tutored groups compared to the asynchronously tutored group. The TGEI subscales showed adequate homogeneity.

CONCLUSIONS

The tutor's presence is productive for PBL group effectiveness. However, the tutor need not be in the actual room but can provide support in online settings as long as the tutoring is synchronous.

The Effectiveness of Problem-based Learning in Acquisition of Knowledge, Soft Skills During Basic and Preclinical Sciences: Medical Students' Points of View

Background:

Students’ opinions about their medical curriculum is essential process for evaluating program strength and weakness. Aim: We aimed to assess the benefits and effectiveness of PBL in acquisition of knowledge and soft skills during basic (Phase I) and preclinical (Phase II) sciences.

Methods:

Across-sectional study was conducted at the University of Bisha, College of Medicine, Saudi Arabia. Students at Phase I and Phase II were involved. A validated self-administered questionnaire used for data collection. Responses to the questionnaire items regarding PBL benefits, preferences and effectiveness in acquisition of knowledge and soft skills were ordinal following a four-point Likert scale format. Independent and paired t tests were used to compare between the means and SD of each two variables. A p value ≤ 0.05 considered as statistically significant.

Results:

Most of students (86.3%) reported a positive perception on all the items assessing the benefits of PBL approach. Students’ responses on PBL relating to the acquisition of knowledge (3.27±0.46) and soft skill (3.32±0.45) were high. There were no significant differences determined in the mean score and SD of acquisition of knowledge (p=0.768) and soft skills (p=0.297) between second and third year students. PBL was preferred in Phase II comparable to Phase I modules (3.371±0.299 vs. 3.026±0.627; p=0.001).

Conclusion:

Effectiveness of PBL found to be high and increasing after taking a series of modules. Although PBL methodology has impact in acquisition of knowledge and skills, intended program outcome should be determined to assess the effects of PBL.

Problem-Based Learning as an Effective Learning Tool in Community Medicine: Initiative in a Private Medical College of a Developing Country

BACKGROUND

Knowledge of community medicine is essential for health care professionals to function as efficient primary health care physicians. Medical students learning Community Medicine as a subject are expected to be competent in critical thinking and generic skills so as to analyze community health problems better. However, current teaching by didactic lectures fails to develop these essential skills. Problem-based learning (PBL) could be an effective strategy in this respect. This study was hence done to compare the academic performance of students who were taught Community Medicine by the PBL method with that of students taught by traditional methods, to assess the generic skills of students taught in a PBL environment and to assess the perception of students toward PBL methodology.

MATERIALS AND METHODS

This study was conducted among seventh-semester final-year medical students between June and November 2014. PBL was introduced to a randomly chosen group of students, and their performance in an assessment exam at the end of postings was compared with that of the remaining students. Generic skills and perception toward PBL were also assessed using standardized questionnaires.

RESULTS

A total of 77 students took part in the brainstorming session of PBL. The correlation between self-assigned scores of the participants and those assigned by the tutor in the brainstorming session of PBL was significant (r = 0.266, P = 0.05). Out of 54 students who took part in the presentation session, almost all 53 (98.1%) had good perception toward PBL. Demotivational scores were found to be significantly higher among males (P = 0.024). The academic performance of students (P < 0.001) and success rates (P = 0.05) in the examination were higher among students who took part in PBL compared to controls.

CONCLUSION

PBL helped improve knowledge of students in comparison to those exposed only to didactic lectures. As PBL enabled students to identify the gaps in their knowledge and enhanced their group functioning and generic skills, we recommend PBL sessions: They would help optimize the training in Community Medicine at medical schools. Good correlation of tutor and self-assessment scores of participants in the brainstorming session suggests that the role of tutors could be restricted to assessment in presentation sessions alone. Demotivation, which hinders group performance in PBL, needs to be corrected by counselling and timely feedback by the tutors.

Student feedback on problem-based learning processes

BACKGROUND

Problem-based learning (PBL) sessions consist of a brainstorming phase, search phase, individual study, and reporting phase. At the Xavier University School of Medicine, Aruba, PBL is a new learning modality first introduced in May 2013.

AIMS

PBL processes have not been studied previously at the Xavier University School of Medicine, hence the present study was carried out to obtain information about the PBL processes and note differences, if any, among different groups of students.

METHOD

The study was conducted among first- to fourth-semester undergraduate medical students during July 2014 using a previously validated PBL processes instrument developed by van den Hurk et al. Information about gender, semester, weekly hours of study, and learning resources used was obtained. Respondents' agreement with a set of 23 statements was noted using a Likert-type scale, which was scored as 1=totally disagree with the statement, 2=disagree, 3=neutral, 4=agree, and 5=totally agree with the statement. Mean scores were compared among different groups of respondents.

RESULTS

Fifty-one of the 58 students (87.9 per cent) participated. The weekly average study time was 29.9 hours. Lecture handouts and textbooks were commonly used information sources. The mean scores (scale 1 to 5) for learning-issue-driven searching, and extensiveness of searching were 3.49 and 3.45, respectively. The score for explanation-oriented preparation was 3.94, while those for breadth and depth of discussion were 3.75 and 3.62, respectively. Most scores were higher among second-semester students, but the difference was not significant.

CONCLUSION

The self-reported scores were comparable to those reported in previous studies done using the same PBL processes instrument in other medical schools. At Xavier University School of Medicine interactive lectures are the major teaching method and topics covered during PBL are also likely to be covered during lectures, which could influence the scores. The findings of our study providing information about how students function during PBL brainstorming and presentation sessions and how they use different learning resources would be of interest to other medical schools worldwide following a hybrid curriculum. Further studies are required.

Assessing the effectiveness of problem-based learning of preventive medicine education in China

Problem-based learning (PBL) is defined as a student-centered pedagogy which can provide learners more opportunities for application of knowledge acquired from basic science to the working situations than traditional lecture-based learning (LBL) method. In China, PBL is increasingly popular among preventive medicine educators, and multiple studies have investigated the effectiveness of PBL pedagogy in preventive medicine education. A pooled analysis based on 15 studies was performed to obtain an overall estimate of the effectiveness of PBL on learning outcomes of preventive medicine. Overall, PBL was associated with a significant increase in students' theoretical examination scores (SMD = 0.62, 95% CI = 0.41–0.83) than LBL. For the attitude- and skill-based outcomes, the pooled PBL effects were also significant among learning attitude (OR = 3.62, 95% CI = 2.40–5.16), problem solved skill (OR = 4.80, 95% CI = 2.01–11.46), self-directed learning skill (OR = 5.81, 95% CI = 3.11–10.85), and collaborative skill (OR = 4.21, 95% CI = 0.96–18.45). Sensitivity analysis showed that the exclusion of a single study did not influence the estimation. Our results suggest that PBL of preventive medicine education in China appears to be more effective than LBL in improving knowledge, attitude and skills.