Kim Seongho
Biostatistics and Bioinformatics Core, Karmanos Cancer Institute, Wayne State University, USA.
Commun Stat Appl Methods. 2022 May;29(3):397-402. doi: 10.29220/csam.2022.29.3.397. Epub 2022 May 31.
The -value calculation methods for the partial and semi-partial correaltion coefficients were proposed by Cohen (2003) and Kim (2015). The method of Cohen (2003) depends on a single and identical statistic for both partial and semi-partial correlations, while Kim (2015)'s method uses two separate statistics for each of partial and semi-partial correlations. In particular, the mathematical expression of the -value calculation for the semi-partial correlation coefficient differs between Kim (2015) and Cohen (2003). Thus, these two expressions were compared through theoretical aspects and simulations. The results show that the semi-partial correlation coefficients by Kim (2015) is monotonic to the corresponding p-values, while Cohen (2003)'s method does not maintain monotonicity.
偏相关系数和半偏相关系数的p值计算方法由科恩（2003年）和金（2015年）提出。科恩（2003年）的方法依赖于一个用于偏相关和半偏相关的单一且相同的统计量，而金（2015年）的方法对偏相关和半偏相关分别使用两个不同的统计量。特别是，金（2015年）和科恩（2003年）计算半偏相关系数p值的数学表达式有所不同。因此，通过理论分析和模拟对这两个表达式进行了比较。结果表明，金（2015年）计算的半偏相关系数与相应的p值呈单调关系，而科恩（2003年）的方法不具有单调性。
