牙科研究中的样本量估计
Estimating sample size in dental research
AI总结：
本研究旨在为非统计学背景的牙科研究人员提供使用G*power软件确定样本量和检验效能的实用方法，并通过多种统计检验示例加以说明。
摘要：
样本量的确定至关重要，但并非易事。样本量定义为样本中的观测数，应足够大，以具有高可能性检测出组间的真实差异。本研究展示了使用G*power和以往牙科文章来确定样本量的实用程序。使用了涉及独立t检验、配对t检验、单因素方差分析（ANOVA）和单因素重复测量（RM）ANOVA的示例。本研究的目的在于使具有非统计学背景的研究人员能够在实践中自由使用可用的统计软件G*power来确定样本量和检验效能。
英文摘要：
Determination of sample size is critical, however not easy to do. Sample size defined as the number of observations in a sample 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, is shown in this study. Examples involving independent t-test, paired t-test, one-way analysis of variance(ANOVA), and one-way repeated-measures(RM) ANOVA are 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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
