cocor: a comprehensive solution for the statistical comparison of correlations.

cocor: a comprehensive solution for the statistical comparison of correlations.
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DOI:
10.1371/journal.pone.0121945
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Musch J
Musch J
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Diedenhofen B;Musch J

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对两种相关性的大小进行有效比较需要研究人员使用适当的统计检验直接对比相关性。然而,在许多流行的统计软件包中,缺少对相关性之间差异的显著性的检验。为了缩小这一差距,我们引入了cocor,一个R编程语言的免费软件包。cocor包涵盖了广泛的测试,包括比较具有重叠或非重叠变量的独立和相关性。该软件包还包括所有这些比较的Zou置信区间的实现。独立于平台的cocor包增强了R统计计算环境,并可用于脚本编写。两种不同的图形用户界面--一个用于RKWard的插件和一个Web界面--使cocor成为一个方便和用户友好的工具。
A valid comparison of the magnitude of two correlations requires researchers to directly contrast the correlations using an appropriate statistical test. In many popular statistics packages, however, tests for the significance of the difference between correlations are missing. To close this gap, we introduce cocor, a free software package for the R programming language. The cocor package covers a broad range of tests including the comparisons of independent and dependent correlations with either overlapping or nonoverlapping variables. The package also includes an implementation of Zou’s confidence interval for all of these comparisons. The platform independent cocor package enhances the R statistical computing environment and is available for scripting. Two different graphical user interfaces—a plugin for RKWard and a web interface—make cocor a convenient and user-friendly tool.
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