치의학 연구에서의 표본크기 산출
Sample size determination in dental research
임회정,
소속 상세정보
임회정 ( Lim Hoi-Jeong ) - 전남대학교 치의학전문대학원 교정학교실
KMID : 0362720140520090558
Abstract
Sample size determination is critical, but not easy to do. Sample size defined as the number of observations in a sample to be studied should be big enough to have a high likelihood of detecting a true difference between groups. Practical procedure for determining sample size, using G*power and previous dental articles, was shown in this study. Examples involving independent ttest, paired t-test, one-way analysis of variance(ANOVA), and one-way repeated-measures(RM) ANOVA were used. The purpose of this study is to enable researchers with non-statistical backgrounds to use in practice freely available statistical software G*power to determine sample size and power.
키워드
sample size; power analysis; dental research
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