Impact of Concept Mapping and Its Integration Modality in Case-Based Learning on Knowledge Acquisition, Knowledge Retention, and Clinical Reasoning Development Among Third-Year Medical Students: A Prospective Randomized Study

Case-Based Learning (CBL) is a learner-centered educational approach that promotes active learning and clinical reasoning through the discussion of authentic clinical cases. Concept maps are educational tools that help learners organize, integrate, and connect knowledge.

This prospective randomized study was conducted among third-year medical students during their obstetrics and gynecology rotation at the Maternity and Neonatology Center of Tunis. Eligible students who had reviewed the official preeclampsia learning module were randomly allocated to one of three educational interventions:

1. Case-Based Learning without concept mapping.
2. Case-Based Learning with a concept map designed by the instructor and presented at the end of the session.
3. Case-Based Learning with a concept map progressively developed by students under instructor supervision.

All groups were exposed to the same clinical case, learning objectives, instructor, and teaching duration. Learning outcomes were assessed using a pre-test, an immediate post-test, a delayed post-test administered two weeks later, and a synthesis exercise evaluating knowledge organization and clinical reasoning.

The primary outcome is the effect of concept mapping and its integration modality on clinical reasoning and knowledge organization, assessed through the synthesis exercise score. Secondary outcomes include knowledge acquisition and knowledge retention assessed through test scores and score variations over time.