Most existing test statistics for the gene set enrichment analysis are either nonparametric or functions of z-score.
In step-down procedures, the hypotheses corresponding to the most significant test statistics are considered successively, with further tests depending on the outcomes of earlier ones.
Note that F is one of the most common test statistics reported in papers, and in our view, does not require a more thorough explanation.
Since the properties of the LR test in order to assess homogeneity of odds ratios had not been evaluated in the previous studies, we investigated the behavior of this test under various conditions, particularly under within-center and among-centers inequality in multicenter trials and also compared it with the other two most common test statistics, including DL and BD tests.
While some effort has been made to incorporate correlation among neighboring probes into the test statistics, most methods assign a score to, and test the significance at, each individual probe locus [ 14, 15].
Although it is subject to much misuse, misunderstanding and confusion (Sijtsma 2009; Yang and Green 2011), Cronbach's alpha has for a long time been the most widely used quality indicator test statistics measure (e.g., Novick and Lewis 1967).
The REL method is often the only method that can infer selection from small or low divergence alignments and tends to be the most powerful of the three test statistics.
While population expansion was rejected by Tajima's D and Fu's Fs test statistics in most population and regional samples, the high raggedness index estimated for individual populations suggests the occurrence of bottleneck events [ 78].
A further analysis of Sire and Dam effects within each of the two thermal environments shows that Sire × Dam interactions abound in each environment, for most of the examined traits (see test statistics presented within Figure 2), involving substantial crossing of reaction norms.
The test statistic includes typical ANOVA test statistics.
