Background: Problem-based learning (PBL) relies heavily on case structure for their success. To make more meaningful cases, faculty introduced a "case node" that requires students to make a group decision on the action they will take at a given point in the case. The purpose of this study was to determine whether case nodes enhance PBL discussions.
Methods: Two PBL cases were designed with and without a node. In 2011, 2012, and 2015, first-year medical students were assigned one PBL case with a node and one without a node. In total, 26 groups processed cases with a node while 27 groups processed the same cases without the node. All sessions were audio recorded and analyzed to determine the length and quality of discussions.
Results: Groups with a node, regardless of case ( = 25.62, = 12.25) spent significantly more time in discussion on the node topic than those without a node ( = 16.54, = 10.33, =.005, = .80). Groups with a node, regardless of case ( = 14.38, = 8.04) expressed an opinion significantly more frequently than those without a node ( = 6.07, = 5.80, < .001, = 1.19).
Conclusions: Case nodes increased both the length and depth of discussion on a topic and may be an effective way to enhance case-based instruction.
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| http://dx.doi.org/10.36834/cmej.71812 | DOI Listing |
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