11 research outputs found
The Influence of the Dependency Structure in Combination-Based Multivariate Permutation Tests in Case of Ordered Categorical Responses
The goal of this paper was to verify the influence of the dependency structure
among variables on the power of multivariate combination-based permutation
tests in multidimensional applications.
On the basis of the results of the simulation study, correlation seems to
affect combination-based permutation tests by reducing power of multivariate
tests.
Future prospects concern some specific procedures aimed at possibly
improving power of multivariate combination-based permutation tests. The
application of special forms of combination function known as truncated
product method [7] is under investigation to verify if it is possible to
mitigate the negative effect on the power of combination-based multivariate
permutation tests produced by an increasing level of correlation/association
among responses