Meni Koslowsky presents here for the first time a way of modelling stress-strain that will enable researchers to both assess examples from the literature and correctly define and use the model in their own investigations. All stages from construction of the model to data analysis are covered, along with possible pitfalls.This book enables investigators to develop and test models for describing stress phenomena in their own settings. It provides an essential research tool for all those who assess stress and strain in their working lives.