邀请审查:通过适当的功率分析,提高乳牛研究的质量
Kai Wang1, Usman Arshad1, Mutian Niu1
1ETH Zürich, Department of Environmental Systems Science, Animal Nutrition, Institute of Agricultural Sciences, Zürich 8092, Switzerland.
Journal of dairy science
|July 11, 2025
概括
统计力量分析对于动物科学实验至关重要,但往往缺乏. 一个新的R包,pwr4exp,为强大的乳制品科学研究设计提供了一个开源解决方案.
科学领域:
- 动物科学动物科学
- 统计学方法论 统计学方法论
- 乳制品科学研究 乳制品科学研究
背景情况:
- 在动物科学中,控制实验对于测试假设至关重要.
- 代表性抽样是必要的,因为人口研究是不切实际的.
- 充分的统计力分析对于强大的实验设计至关重要,但在乳制品科学出版物中经常被忽视.
研究的目的:
- 解决乳制品科学中缺乏足够的功率分析的问题.
- 介绍pwr4exp,一个开源的R包用于面向模型的功率分析.
- 为动物研究的R提供标准化功率分析的实际指导方针.
主要方法:
- 在"乳制品科学杂志" (1995-2023) 中报告动力分析趋势的分析.
- 基于线性混合模型推断的pwr4exp R包的开发和验证.
- 对 pwr4exp 与 SAS 程序进行各种实验设计的比较.
主要成果:
- 分析的乳制品科学文章中,只有4.73%报告了功率分析.
- 59%的进行功率分析的研究没有具体说明所使用的工具.
- 开发和验证了pwr4exp R套件,其结果与SAS在标准设计中的结果相当.
结论:
- 在动物科学中,对标准化,开源的功率分析工具有很大的需求.
- pwr4exp R包为改善乳制品科学中的实验设计和统计学严谨性提供了宝贵的资源.
- 在动物研究中,模型规范对于准确的功率计算至关重要,而pwr4exp促进了这一过程.
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