"Provides current models, tools, and examples for the formulation and evaluation of scientific hypotheses in causal terms. Introduces a new method of model parametritization. Illustrates structural equations and graphical elements for complex causal systems."

This work provides current models, tools, and examples for the formulation and evaluation of scientific hypotheses in causal terms. It introduces a new method of model parametrization, and illustrates structural equations and graphical elements for complex causal systems.