|1399 Evaluation of CDs and Chewing Gum in Teaching Dental Anatomy|
K.L. ALLEN, D.L. GALVIS, and R.V. KATZ, New York University, USA|
Objective: The purposes of this pilot study were: 1) to compare two methods of teaching dental anatomy: ‘CD + lab' vs ‘standard lecture + lab'; and, 2) to determine whether actively chewing gum during lecture, lab and studying would have an effect on learning.
Methods: One group (N=26) received a 50 minute standard dental anatomy lecture while the comparison group (N=30) used only an instructional, commercially-available CD on dental anatomy; both groups had standard dental anatomy labs over a three day period. Half of the students in each group were required to chew gum. The study subjects, 56 incoming dental students who had no prior dental experience, were stratified on DAT score and undergraduate GPA. Outcomes were measured in two ways: 1) a 25 question objective exam graded by Scantron, and 2) a 1.5 hour practical exam graded by standardized, blinded examiners.
Results: Only the written examination average scores for the gum vs. no gum chewing groups showed differences which appear to be educationally meaningful, though not statistically significant: the chewing gum group (n= 29) had an average of 83.6 vs. 78.8 for the no chewing gum group (n=27) (p = 0.18). A similar, but smaller written examination score difference was observed between the CD vs. lecture groups (83.7 vs. 81.3, respectively). The practical examination analyses showed no differences either between the CD vs lecture groups or between the gum vs. no gum chewing groups.
Conclusion: This pilot study suggests that: 1) the cost-effective method of using of a self-study CD is as educationally effective as a standard lecture; 2) that gum chewing resulted in higher scores (a B- vs. C+ grade) in the written examination, and 3) that future, full-sized studies should be conducted to confirm these findings.
This study was funded by the Wm Wrigley Jr. Company.
|Seq #148 - Education Research: e-learning|
12:30 PM-2:30 PM, Thursday, 11 March 2004 Hawaii Convention Center 322-A