The knowledge and understanding that the scientist has about the world is often represented in the form of models.
Models are a form of theories , or explanations of relationships and events.
The scientific method is basically one of creating, verifying, and modifying theories or models of the world. The goal of the scientific method is to simplify and explain the complexity and confusion of the world. The applied scientist and technologist then use the theories and models of science to predict and control the world. It is important, therefore, that social science students understand both the reasoning behind the models and their application in the world. We have already discussed the notion of theory.