Peer-assisted uniform learning in musculoskeletal anatomy: Enhancing performance across cognitive domains in objective structured practical examination

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BACKGROUND: Peer-assisted learning enhances conceptual understanding in anatomy education; however, its impact on structured cognitive outcomes remains unclear. We evaluated the effect of the Peer-Assisted Uniform Learning (PAUL) program on musculoskeletal (MSK) anatomy objective structured practical examination (OSPE) performance. METHODS: We used a cross-sectional, controlled, observational design to analyse the OSPE scores of 304 students. Seventy-nine students who attended at least two PAUL sessions formed the exposure group, while 225 served as the control group. The PAUL participants alternated between tutor and tutee roles during the sessions. The OSPE items were divided into Cluster 1 (identification/recall) and Cluster 2 (application/analysis). A validated survey was used to assess the participants perceived learning outcomes and satisfaction. RESULTS: PAUL participants outperformed non-participants in Cluster 1 (78.4 vs. 73.7, p = 0.01) and Cluster 2 (87.2 vs. 82.8, p = 0.02). The relative gain was greater for application-based items (interaction effect: F = 8.37, p = 0.004), supporting the program's effect on higher-order reasoning. Survey responses (91 % response rate) showed high satisfaction (mean 4.3 ± 0.6) and perceived learning gains (mean 4.1 ± 0.7); 85 % of students reported improved understanding of the subject. CONCLUSION: The PAUL program, grounded in social constructivist principles and supported by faculty oversight, improved performance in both recall and application of MSK anatomy OSPE items, with the strongest impact on application-based learning.

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