Summary of statistical tests considered in this study

[i] aSee Methods for complete details.
[ii] bOption to --method argument in phyloP that specifies each test; also used throughout this study as an abbreviation for the test.
[iii] cNull distribution of test statistic assumed when computing P-values. The χ2 distributions for the LRT and SCORE tests hold asymptotically but are approximate for finite data sets. See Methods for discussion of issues that arise in one-sided tests.
[iv] dThe abbreviation “SPH” stands for “Siepel-Pollard-Haussler,” the authors of the conference paper in which the relevant algorithms were introduced.