新的效果大小和样本大小指导方针在牙科
Grzegorz Zieliński1, Mieszko Więckiewicz2
1Department of Sports Medicine, Medical University of Lublin, Poland.
Dental and medical problems
|October 29, 2025
概括
这项研究为牙科研究建立了新的效果大小值. 更新了科恩的指南.
科学领域:
- 牙科 牙科是指牙科的专业.
- 生物统计学 生物统计学
- 医学研究 医学研究
背景情况:
- 确定的效果大小值可能不适用于所有科学领域.
- 之前的研究强调了对特定领域效应大小分布的需求.
- 一般效果大小指南对于牙科等专业研究领域可能缺乏准确性.
研究的目的:
- 为了确定最新的,牙科特定的效果尺寸值,对皮尔森的r,科恩的d,和赫奇斯的g.
- 提高牙科研究结果的统计严谨性和可解释性.
- 为研究人员提供精确的基准来评估牙科研究中影响的大小.
主要方法:
- 从顶级牙科期刊的元分析中提取的数据.
- 计算了Pearson的r和Cohen的d/Hedges的g的第25个,第50个和第75个百分点.
- 分析了4250项使用R编程语言统计方法的研究.
主要成果:
- 皮尔森的r百分比为:0.16 (第25位),0.40 (第50位),0.67 (第75位).
- Hedges 的 g 百分比为: 0.10 (小), 0.35 (中等), 0.86 (大).
- 在牙科研究中确定了小型,中型和大型效果大小的特定百分位值.
结论:
- 皮尔森r的推值为:0.20 (小),0.40 (中等),0.70 (大).
- 对于科恩的d/赫奇斯的g,推的值为:0.10 (小),0.40 (中),0.90 (大).
- 预计这些门的采用将改善牙科研究质量和患者的结果.
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