In this paper we describe some general methods for constructing goodness of fit tests in nonparametric regression models. Our main concern is the development of statisticial methodology for the assessment (validation) of specific parametric models M as they arise in various fields of...

This article presents a nonparametric approach to analyzing research designs that include repeated observations on the same set of individuals or units, such as longitudinal panel studies. The data collected from different individuals are generally assumed to be independent, while several...