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Dissection and dissection-associated required experiences improve student performance in gross anatomy: Differences
Marc A Pizzimenti1, Nicholas Pantazis1, Alexander Sandra1
1Department of Anatomy and Cell Biology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa.
Medical gross anatomy students who participated in more dissection activities showed improved examination scores. Lower-quartile students experienced the greatest benefits from hands-on dissection, enhancing their learning outcomes.
Area of Science:
- Medical Education
- Anatomy
- Pedagogy
Background:
- Effective educational strategies require multi-level student engagement.
- Gross anatomy is a foundational medical science course.
Purpose of the Study:
- To investigate the correlation between student performance in gross anatomy and learning through dissection.
- To analyze the impact of varying dissection exposure and peer teaching on student examination outcomes.
Main Methods:
- Analysis of examination data from 692 first-year medical students across five cohorts.
- Comparison of student performance based on the number of weekly dissections completed (one vs. two).
- Stratification of results by student academic quartiles (upper and lower).
Main Results:
- Students completing two dissections per unit showed higher average laboratory and written examination scores than those completing one (P < 0.01).
- Upper-quartile students scored higher with one or two dissections compared to peer learning (92.8%/92.4% vs. 90.3%, P < 0.01).
- Lower-quartile students demonstrated the most significant gains from dissection, outperforming peer learning in practical and written exams (77.8%/80.5% vs. 73.7%, P < 0.01).
Conclusions:
- Dissection, combined with educational activities, is an effective pedagogical strategy for gross anatomy learning.
- Lower-quartile students benefit more extensively from dissection compared to upper-quartile students.
- Further research is needed to explore the benefits of peer teaching within dissection-based learning.
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