Video-Based Cases May Not Be Better Than Text-Based Cases In Problem Based Learning

In a randomized controlled study of 2nd year medical students in PBL tutorials, one group was given video-based cases and the other group text-based cases.  Critical thinking in student discussions was measured using a critical thinking model that classified student utterances into deep or superficial critical thinking. The authors found that while students preferred video cases to text cases, the odds of deep thinking were significantly lower using video-based cases (OR 0.66, 95% CI 0.58-0.75). The authors speculate that higher student satisfaction in video cases suggest students spent less effort on learning. This study did not examine whether the differences in deep critical thinking had any impact on student achievement or long term retention of new knowledge. — Sarang Kim, MD

Basu Roy R, McMahon GT.,Video-based cases disrupt deep critical thinking in problem-based learning., Med Educ. 2012 Apr;46(4):426-35.

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