구강악안면외과와 관련된 국내 학술지의 통계분석방법의 적용에 대한 연구 = A Study of Statistical Analysis Methods in Domestic Journal Related to Oral and Maxillofacial Surgery

다국어 초록 (Multilingual Abstract)

The purpose of this study to evaluate the statistical errors of domestic articles in the Journal of Korean Oral and Maxillofacial Surgeons and the Journal of Korean Maxillofacial Plastic and Reconstructive Surgeons. Of the articles, 131 articles were included which analyzed the data statistically.
We made a checklist for detecting the errors according to the following steps: the of the experiment, the application of analytic method, and conclusion of the experiment.
The results of this study were as follows
１. There were significant statistical errors in 23 of all 131 articles which may 18%.
２. Statistical errors in sample representive were 21 portions of 66 articles, in which the error rate of the sample design was 85.7% and the error rate of the classification and grouping was 14.3%.
３. Statistical errors in data description were 21 portions of 65 articles, in which the error rate of the measure of location was 85.7% and the error rate of the measure of dispersion was 33.3%.
４. Statistical errors in t-test were 78 portions of 41 articles, in shich the error rate of the normality was 51.3%, the error rate of the equality of variance was 46.2% and the error rate of the independence of observations was 2.5%.
５. Statistical errors in x^2 test were 8 portions of 3 articles, in which the error rate of the null hypothesis and the independence of observations was 37.5% and the error rate of the small number hypothesis was 25%.
６. Statistical errors in variance analysis were 18 Portions of 11 articles, in which the error rate of the null hypothesis was 44.4%, the error rate of the normality was 39% and the error rate or the sample size was 16.6%
７. Statistical errors in regression analysis were 8 Portions of 5 articles, which in the error rate of the normality of observations was 50%, the error rate of the additional model test was 37.5% and the error rate of the multicollinearity was 12.5%.

목차 (Table of Contents)

• ABSTRACT
• Ⅰ. 서론
• Ⅱ. 본론
• Ⅲ. 증례
• Ⅳ. 결론
• REFERENCE