Robust Test News Today

Congress- U.S. Senate- Committee on Banking, Housing, and Urban Affairs- Hearing: The Semiannual Monetary Policy Report to Congress- June 22, 2022- ...

Van Valen’s test is usually applied as a two sample test for equality of dispersion for multivariate data. Motivated by a comment of Manly (Van Valen’s test. Encyclopedia of Statistical Sciences, 2006) that “Little is known about the properties of Van Valen’s test” we develop an alternative test and compare the Van Valen test with our alternative robust test in an extensive simulation study. We find that Van Valen’s test does not actually test for equality of variance sums; however, ...