This is a preview. Log in through your library . Abstract In many surveys, the data comprise a large number of categorical variables that suffer from item nonresponse. Standard methods for multiple ...

Questions: How well do GIS-derived categorical variables (e.g., vegetation, soils, geology, elevation, geography, and physiography) separate plots based on community composition? How does the ability ...

The aim of this paper is to provide an overview of sample size estimations for the most frequent type of group studies that result in continuous, binary and ordered categorical outcomes. In recent ...