It all make sense: biomedical knowledge, causal connections and memory in the novice diagnostician
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Although there is consensus among medical educators that students must receive training in the biomedical sciences, little is known regarding the role of biomedical knowledge in diagnosis. The present paper presents two studies examining the role of biomedical knowledge, specifically knowledge of causal mechanisms, in novice diagnosticians. In Experiment 1, two groups of participants are taught to diagnose a series of artificial diseases. In the causal learning condition students learn the underlying causal mechanisms for each feature. A second group learns the same diseases without the causal explanations. Participants are asked to diagnose a series of written cases immediately after training and again 1 week later. The results show that students who learn a causal model are better able to retain their diagnostic performance over time (89% correct vs. 78%). This finding is investigated further in Experiment 2, demonstrating that students rely more on casual information after a delay (mean probability of 57% vs. 43%). Together, the studies suggest that knowledge of underlying causal mechanisms can aid student memory for diagnostic categories and that use of causal knowledge changes over time.
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- It all make sense: biomedical knowledge, causal connections and memory in the novice diagnostician
Advances in Health Sciences Education
Volume 12, Issue 4 , pp 405-415
- Cover Date
- Print ISSN
- Online ISSN
- Springer Netherlands
- Additional Links
- Basic science
- Causal knowledge
- Clinical reasoning
- Undergraduate medical education
- Concept formation
- Industry Sectors
- Author Affiliations
- 1. Department of Surgery, The Wilson Centre, University of Toronto, 200 Elizabeth Street, Eaton South 1-565, Toronto, ON, Canada, M5G 2C4
- 2. Department of Psychology, Behaviour and Neuroscience, McMaster University, Hamilton, ON, Canada
- 3. Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada