多重检验、Post-Hoc分析与重复测量ANOVA 首先参考这篇简文,了解多重检验的目的、原理和方法:多重检验中FDR的计算。 多重检验之所以重要,是因为在实际科学实验中,对单一现象的研究过程往往会重复成百上千次,即便p值的阈值设定为0.01,也不免随着测量次数的增加而导致Type I 错误的累积,因此需要对检验方法与p值进行...
Post Hoc Power Analysis The objective of a post hoc review of statistical power is to determine the average power of tests used in a particular field. Because most theories in psychology are not sufficiently advanced to provide an exact prediction of effect siz... Gillett,Raphael - 《Journal ...
To this end, we performed a post-hoc analysis of obese Dutch individuals that participated in a 3-month diet induced weight loss intervention program. We assessed exposure to EDCs (i.e. phenols and phthalates), as measured in 24 h urine voids, before (baseline) and after the 3-month ...
Advanced: Post-hoc analysis You may want to explore specifically how the differences are significant within subgroups here. This is called post hoc analysis. Since STATA does not provide this as a default option, you must use a user-created package calledtab_chi(developed byNicholas Cox). This...
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方差分析中的Post hoc检验 Post Hoc Tests in ANOVA This handout provides information on the use of post hoc tests in the Analysis of Variance (ANOVA). Post hoc tests are designed for situations in which the researcher has already obtained a significant omnibus F-test with a factor that ...
One common and popular method of post-hoc analysis is Tukey’s Test. The test is known by several different names. Tukey’s test compares the means of all treatments to the mean of every other treatment and is considered the best available method in cases when confidence intervals are desired...
Post hoc analysis by the Tukey-Kramer test was performed when treatment effects were found to be statistically significant. An average appetite score was calculated at each time of measurement for each drink treatment by the formula as follows: Appetite score ϭ [desire to eat ϩ hunger ϩ...
方差分析中的Post-hoc检验 Post Hoc Tests in AN OVA This handout provides information on the use of post hoc tests in the Analysis of Variance (ANOVA). Post hoc tests are designed for situations in which the researcher has already obtained a significant omnibus F-test with a factor that cons...
The analysis will be performed using the function (I wrote) called “friedman.test.with.post.hoc”, based on the packages “coin” and “multcomp”. Just a few words about it’s arguments: formu – is a formula object of the shape: Y ~ X | block (where Y is the ordered (numeric...