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PowerPoint or chalk and talk: Perceptions of medical students versus dental students in a medical college in India

Authors Vikas Seth, Prerna Upadhyaya, Mushtaq Ahmad, et al.

Published 30 August 2010 Volume 2010:1 Pages 11—16

DOI http://dx.doi.org/10.2147/AMEP.S12154

Review by Single-blind

Peer reviewer comments 4

Vikas Seth, Prerna Upadhyaya, Mushtaq Ahmad, Vijay Moghe

Department of Pharmacology, Mahatma Gandhi Medical College, Jaipur, Rajasthan, India

Purpose: To assess students’ perceptions of the impact of PowerPoint (PPT) presentations in lectures in comparison to the traditional chalk and talk method and lectures using ­transparencies and overhead projector (TOHP). The study analyzes the preferences for teaching aids of medical students versus dental students.

Methods:
Second year medical and dental undergraduates were asked to fill in a nine-item questionnaire about their perceptions of the three lecture delivery methods. Following analysis of the questionnaire the students were interviewed further. The results were analyzed separately for medical and dental students to see if there was any difference in their perceptions.

Results:
The majority of the medical students (65.33%) preferred PPT presentations, while 15.16% of students preferred the lectures using chalkboard, and 19.51% preferred TOHP for teaching (P < 0.001). Of the dental students: 41.84% preferred chalkboard, 31.21% preferred TOHP, and 25.85% students preferred PPT presentations in the lectures (P < 0.05). Some important comments of the students were also recorded on interview which could be valuable for the medical teachers.

Conclusion:
The medical students clearly preferred the use of PPT presentations while the dental students did not. The study does not bring out evidence based superiority of any lecture delivery method. It appears that in the hands of a trained teacher any teaching aid would be appropriate and effective. This highlights the need for formal training in teaching technologies to develop good presentation skills and thus motivate the students.

Keywords: audiovisual aids, medical education, lecture delivery methods, PowerPoint presentations, OHP, chalkboard

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