Conventional statistical methods often test for group differences in a single parameter of a distribution, usually the conditional mean (for example, differences in mean body mass index (BMI; kg m −2) ...

A procedure is given for finding independent, jointly sufficient statistics for parameters, when sufficient statistics exist, and for finding the distribution of one of the statistics. It involves ...

The response variable of a general multivariate model can be constructed as a positive affine transformation of a vector error variable. In the case of an error ...